which isotope, when bombarded with nitrogen-15, yields four neutrons and the artificial isotope dubnium-260?

Answers

Answer 1


The isotope that yields four neutrons and the artificial isotope dubnium-260 when bombarded with nitrogen-15 is curium-244.

Curium-244 is a transuranic element of the actinide series. When bombarded with nitrogen-15, a nucleus of curium-244 splits into two smaller nuclei, releasing four neutrons in the process.

This process is called nuclear fission. The nucleus of nitrogen-15 is then combined with the two smaller nuclei to form dubnium-260, which is an artificially produced isotope.

Nuclear fission of curium-244 is a common process used in nuclear power plants. In nuclear power plants, uranium-235 is bombarded with neutrons, causing a chain reaction that produces energy and more neutrons.

The neutrons then bombard other uranium-235 nuclei, continuing the process. By bombarding curium-244 with nitrogen-15, a similar chain reaction is created that produces dubnium-260.

The production of dubnium-260 through nuclear fission of curium-244 can be used for various scientific and industrial purposes.

It can be used in the production of nuclear weapons, nuclear fuel, medical isotopes, and in other research activities.

In addition, it can be used as a catalyst for chemical reactions, to produce high energy radiation for sterilization, and for other industrial processes.

In conclusion, curium-244 yields four neutrons and the artificial isotope dubnium-260 when bombarded with nitrogen-15.

This process, known as nuclear fission, can be used in a variety of scientific and industrial applications.

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Related Questions

how many electrons does cl want to gain? hint: how many are gained to form a stable noble gas electron configuration, ns2 np6 (octet rule)?

Answers

Chlorine (Cl) is a nonmetal, meaning it has the tendency to gain electrons to achieve the electron configuration of a noble gas. The noble gas electron configuration of the nearest noble gas, argon (Ar), is 1s2 2s2 2p6 3s2 3p6, with a total of 18 electrons.

Chlorine has 7 valence electrons, meaning it needs 1 more electron to achieve a stable noble gas electron configuration. Therefore, chlorine wants to gain 1 electron to achieve a stable noble gas configuration.

In terms of bonding, chlorine can either gain 1 electron to form an anion with a 1- charge or it can share electrons with another atom to form a covalent bond. Chlorine most commonly forms a single covalent bond with another atom, such as hydrogen, to form hydrogen chloride (HCl). In this case, both atoms share electrons to form a stable molecule.

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write the reaction that produces carbon dioxide in the separatory funnel in the workup of the reaction. g

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One common reaction that produces carbon dioxide in organic chemistry workup is the reaction between sodium bicarbonate (NaHCO₃) and an acid.

When an acidic solution is added to a mixture containing sodium bicarbonate, carbon dioxide gas is produced as a result of the following reaction:

NaHCO₃ + H+ → Na+ + CO₂ + H₂O

The carbon dioxide gas will then bubble out of the mixture and can be collected in a separate container or released into the air.

In a separatory funnel workup, this reaction may be used to remove excess acid from an organic reaction mixture. The mixture is first extracted with a suitable organic solvent, and then an aqueous solution of sodium bicarbonate is added to the separatory funnel. The acidic components in the mixture will react with the sodium bicarbonate to produce carbon dioxide, which will bubble out of the mixture and can be released through the stopcock

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1. the pinakbet that your mother cooks is an example of a _

A. solution B. mixture C. solvent D. solute

2. which is NOT a characteristic of heterogeneous mixture?

A. the substances are evenly mixed
B. the substances are completely dissolved in water
C. the substances that are mixed cannot be identified
D. the substances can still be identified from the mixture

Answers

Answer:

1. Ans: B

Explanation: Pinakbet, which contains vegetables such as eggplants and kalabasa, are physically combined. Therefore, the pinakbet is an example of a mixture

2. Ans: A

Explanation: Heterogenous are different building blocks that are mixed UNEVENLY.

PLEASE HELPPPP asapppppppppp

Answers

It has a charge because if I don’t get these 18 points I’m goin explode

Prepwork: **Find the mass of a sample of CCl4 with 5.90 x 1020 particles.

Answers

0.1503 grams is the approximate mass of the CCl4 sample.

Determining the mass of a particle using Avogadros number

We can use Avogadro's number to solve this problem:

1 mole of any substance contains 6.02 x 10^23 particles

Therefore, the number of moles of CCl4 in the sample is:

5.90 x 10^20 particles / 6.02 x 10^23 particles per mole = 0.000978 moles

The molar mass of CCl4 is approximately 153.82 g/mol. Therefore, the mass of the sample is:

0.000978 moles * 153.82 g/mol = 0.1503 g

Therefore, the mass of the sample of CCl4 with 5.90 x 10^20 particles is approximately 0.1503 grams.

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what metal hydride reducing agent is used in this experiment? what product would be formed if catalytic hydrogenation with h2 were used?

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The metal hydride reducing agent used in this experiment is sodium borohydride (NaBH₄).

If catalytic hydrogenation with H2 were used, the product would be an alkane with a double bond reduced to a single bond.

Sodium borohydride (NaBH₄) is a strong reducing agent capable of reducing aldehydes and ketones to their corresponding alcohols. It works by donating protons to the carbon-oxygen double bond, leading to the formation of an alkoxide intermediate.

The alkoxide is then reduced to the corresponding alcohol by hydrogen transfer from the hydride ion. Catalytic hydrogenation with H₂ will reduce the double bond to a single bond, producing an alkane product.

This process is used to produce a range of organic products in the laboratory, and is a very useful tool in organic synthesis.

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Draw the sun and label the 4 layers from middle to the surface.​

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The layers of the sun can be seen in the image attached.

What are the layers of the sun?

The sun is composed of several layers, including:

Core: The innermost layer of the sun where nuclear fusion takes place. The temperature in the core is about 15 million degrees Celsius.

Radiative Zone: This layer is between the core and the convection zone. Energy produced in the core is transported through the radiative zone by photons.

Convection Zone: The outermost layer of the sun's interior where hot gas rises and cooler gas sinks. The energy produced in the core is carried to the surface by convection.

Photosphere: The visible surface of the sun where most of the sun's light is emitted. The temperature of the photosphere is around 5,500 degrees Celsius.

Chromosphere: A thin layer above the photosphere that emits a reddish glow during solar eclipses. The temperature of the chromosphere ranges from 4,000 to 10,000 degrees Celsius.

Corona: The outermost layer of the sun's atmosphere, extending millions of kilometers into space. The temperature of the corona is extremely high, around 1 to 3 million degrees Celsius.

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tungsten has a radius of 141 pm and crystallizes in a body-centered cubic structure. what is the edge length of the unit cell?

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Answer:  The edge length of the unit cell for tungsten is 0.548 nm.

Tungsten has a radius of 141 pm and crystallizes in a body-centered cubic structure.

The edge length of the unit cell can be calculated as follows:

Edge length of a body-centered cubic unit cell

(a) = √3 × 4r/3, where r is the radius of the atom.

Given, tungsten has a radius of 141 pm.

Thus, a = √3 × 4 × 141 pm / 3

= √3 × 564 pm / 3

= 1.417 × 10^-7 m / pm × √3 × 564

= 0.316 nm × 1.732

= 0.548 nm

The edge length of the unit cell for tungsten is 0.548 nm.



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How many grams are in 87g of potassium bromide?

Answers

The number of mole present in 87 grams of potassium bromide, KBr is 0.731 mole

How do i determine the number of mole present?

We'll begin our calculation by obtaining the molar mass of potassium bromide, KBr. Details below:

Molar mass of ptassium, K = 39 g/molMolar mass of bromine, Br = 80 g/molMolar mass of potassium bromide, KBr =?

Molar mass of potassium bromide, KBr = K + Br

Molar mass of potassium bromide, KBr = 39 + 80

Molar mass of potassium bromide, KBr = 119 g/ mol

Finally, we shall determine the number of mole present. Details below:

Mass of potassium bromide, KBr = 87 grams Molar mass of potassium bromide, KBr = 119 g/mol Mole of potassium bromide, KBr =?

Mole = mass / molar mass

Mole of potassium bromide, KBr = 87/ 119

Mole of potassium bromide, KBr = 0.731 mole

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Complete question:

How many moles are in 87g of potassium bromide?

A student exposed r-1-bromo-2-propanol to sodium hydroxide, isolated an optically active product, and collected the proton nmr below. what is the structure of the compound that the student isolated?

Answers

The student obtained an optically active product after exposing r-1-bromo-2-propanol to sodium hydroxide. The proton NMR of the product is also provided.

The structure of the compound that the student isolated is:CH3 – CH (OH) – CH2 – Br

In the given compound r-1-bromo-2-propanol, the bromine atom is attached to the first carbon atom. When this compound is treated with sodium hydroxide, the hydroxide ion attacks the carbon atom attached to the bromine atom and forms a negatively charged oxygen atom.This negatively charged oxygen atom further attracts the proton of the adjacent carbon atom (second carbon atom). After the transfer of a proton, the negatively charged oxygen atom gets neutralized and an alkoxide ion is formed. This alkoxide ion further attacks the third carbon atom and the compound is formed.In the compound obtained, there is no plane of symmetry or center of symmetry. This makes the compound optically active.

Further, the proton NMR shows the presence of a singlet at chemical shift 1.1 ppm due to the presence of three equivalent methyl groups. The presence of a broad singlet at chemical shift 3.7 ppm is due to the presence of –OH group. The singlet at chemical shift 4.2 ppm is due to the presence of –CH2 group.The structure of the compound that the student isolated is CH3 – CH (OH) – CH2 – Br.

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Convert 7.41 x 1024 molecules of C2H2 to grams

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Answer:

To convert molecules of C2H2 to grams, we need to use the molar mass of C2H2, which is 26.04 g/mol.

First, we need to calculate the number of moles in 7.41 x 10^24 molecules of C2H2:

7.41 x 10^24 molecules / 6.022 x 10^23 molecules/mol = 12.31 mol

Then, we can use the formula:

mass = moles x molar mass

mass = 12.31 mol x 26.04 g/mol = 320.4624 g

Therefore, 7.41 x 10^24 molecules of C2H2 is equivalent to 320.4624 grams.

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if a sample has 50 atoms of 87 rb and 50 atoms of sr, how many half-lives has the sample gone through?

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Answer: If a sample has 50 atoms of 87Rb and 50 atoms of Sr, it has gone through the equivalent of 77.7 billion years in half-lives.


In order to answer this question, we need to know the half-lives of both 87Rb and Sr. The half-life of 87Rb is 48.8 billion years and the half-life of Sr is 28.9 billion years.

Therefore, the sample has gone through the equivalent of (50/50) x 48.8 billion years, or 48.8 billion years, of 87Rb's half-life.

It has also gone through (50/50) x 28.9 billion years, or 28.9 billion years, of Sr's half-life. In total, the sample has gone through the equivalent of 77.7 billion years in half-lives.


In summary, if a sample has 50 atoms of 87Rb and 50 atoms of Sr, it has gone through the equivalent of 77.7 billion years in half-lives.


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Which of the following electronic transitions for hydrogen would result in the emission of a quantized amount of energy?
A. n = 1 → n = 2
B. n = 2 → n = 3
C. n = 5 → n = 4
D. n = 4 → n = 6

Answers

A.

i had this question and i got it right

what minimal photon energy in ev is required to eject an electron from the ground state of a doubly ionized lithium

Answers

The minimum photon energy required to eject an electron from the ground state of a doubly ionized lithium is 8.62 eV.

This is due to the fact that ionization energy of doubly ionized lithium is 8.62 eV, which means that the minimum amount of energy required to remove an electron from the atom is 8.62 eV.

This is the amount of energy that the incoming photon must have in order to eject an electron from the ground state of a doubly ionized lithium atom.

In other words, the photon must possess at least 8.62 eV of energy to remove the electron from the atom.

This is why a photon with energy of 8.62 eV or more is required to eject an electron from the ground state of a doubly ionized lithium atom.

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What is the balanced chemical
reaction for the synthesis of
nitrogen with hydrogen?
A. N₂ +H₂ → NH
B. N₂ + 2H₂ → 2NH3
C. 3N₂ + H₂ → 2NH3
D. N₂ + 3H₂ → 2NH3

Answers

The balanced chemical reaction for the synthesis of hydrogen with nitrogen is for the production of ammonia. This process is called Haber process. Option D is the correct answer.

What is Haber process?

The Haber process is a chemical process that is used to produce ammonia (NH₃) from nitrogen (N₂) and hydrogen (H₂) gases. The process was developed by German chemist Fritz Haber in 1909 and is also known as the Haber-Bosch process.

The process involves the reaction of nitrogen and hydrogen in the presence of an iron catalyst and high pressure and temperature. The reaction is exothermic, releasing a large amount of heat. The Haber process is represented by the given balanced equation:

N₂ + 3H₂ → 2NH₃

The ammonia produced by the Haber process is a key component in the production of fertilizers and is also used in the manufacture of a wide range of other products, including explosives, dyes, and cleaning agents.

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when the temperature of a rigid hollowsphere containing 685 l of helium gasis held to 621 k, the pressure of the gasis 1 kpa. how many moles ofhelium does the sphere contain?

Answers

Answer:

610 k because is the hollwsphere is the gasis and 1 kpa of helium

What happens to molecules once they are eaten by animals

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When animals consume food containing large polymeric molecules, such as proteins, carbohydrates, and nucleic acids, their digestive system breaks down these molecules into smaller components that can be absorbed and utilized by the body.

Mechanical digestion occurs in the mouth and stomach, where food is broken down into smaller pieces through chewing and mixing with digestive enzymes and acids. Chemical digestion occurs primarily in the small intestine, where enzymes and other compounds break down complex molecules into smaller components.

Proteins, for example, are broken down into their constituent amino acids by proteases, while carbohydrates are broken down into simple sugars like glucose and fructose by amylases. Nucleic acids are broken down into nucleotides by nucleases.

Once these molecules are broken down, they are absorbed into the bloodstream through the walls of the small intestine and transported to the liver, where they are further metabolized and distributed to other parts of the body as needed. The body then uses these molecules to build new proteins, carbohydrates, and nucleic acids or to generate energy through cellular respiration. Any excess molecules are typically stored for later use or eliminated from the body as waste.

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--The complete question is, What happens to large polymeric molecules in food once they are eaten by animals?--

a student prepares a solution by combining 100 ml of 0.30 m hno2(aq) and 100 ml of 0.30 m kno2(aq). which of the following equations represents the reaction that best helps to explain why adding a few drops of 1.0 m hcl(aq) does not significantly change the ph of the solution?

Answers

The reaction that best explains why adding a few drops of 1.0 M HCl(aq) does not significantly change the pH of the solution is HNO₂aq) + H₂O(l) ⇌ H₃O+(aq) + NO₂-(aq)

When HNO₂ and KNO₂ are mixed, they undergo a dissociation reaction in which HNO₂ donates a proton to water and forms H₃O+ and NO₂-. This reaction produces a weakly acidic solution with a pH of approximately 3. Adding a few drops of 1.0 M HCl to the solution would result in the protonation of NO₂- ions, forming HNO₂, which would lower the pH of the solution.

However, since HNO₂ is already present in the solution, the added HCl would not significantly change the pH of the solution. This is because the additional HNO₂ formed from the reaction of HCl with NO₂- would be in equilibrium with the original HNO₂ in the solution, and the concentration of HNO₂ would not significantly change.

Therefore, the equilibrium equation for the dissociation of HNO₂ in water can best explain why adding a few drops of HCl does not significantly change the pH of the solution.

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based on results presented in the passage, researchers hoping to alter the appearance of sgbp while maintaining its function as a cp providing a colored appearance would most logically choose to mutate which sgbp residue?

Answers

The nucleotide sequence of an organism's genome, that of a virus, extrachromosomal DNA, or other genetic components can change permanently in a process known as mutation.

Any alteration to a cell's DNA sequence. Mistakes in cell division can result in mutations, as can exposure to environmental DNA-damaging substances.

Gene mutations can be divided into two categories: small-scale mutations and large-scale mutations.

Appearance Alteration is the capacity to modify another person's skin, hair, and vocal chords (also known as adaptive appearance manifestation).

The genes that encode our pigment's sensitivity to color can multiply themselves throughout time. The additional copies are susceptible to mutations that change the range of wavelengths they can absorb.

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a chemist determined by measurements that moles of magnesium participated in a chemical reaction. calculate the mass of magnesium that participated in the chemical reaction.

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Answer : The molar mass of magnesium is 24.305 g/mol

To calculate the mass of magnesium that participated in the chemical reaction, you need to know the number of moles of magnesium and the molar mass of magnesium. The molar mass of magnesium is 24.305 g/mol. Multiply the number of moles of magnesium by the molar mass of magnesium to calculate the mass of magnesium that participated in the chemical reaction.  


For example, if you were given that the number of moles of magnesium is 0.25 moles, then you can calculate the mass of magnesium by multiplying 0.25 moles by 24.305 g/mol. This gives a result of 6.076 g of magnesium that participated in the chemical reaction.

To sum up, calculating the mass of magnesium that participated in the chemical reaction requires knowing the number of moles of magnesium and the molar mass of magnesium. The molar mass of magnesium is 24.305 g/mol, and you can calculate the mass of magnesium that participated in the chemical reaction by multiplying the number of moles of magnesium by the molar mass of magnesium.

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fluoride ion is added to drinking water at low concentrations to prevent tooth decay. what mass of sodium fluoride (naf) should be added to 750 l of water to make a solution that is 1.5 ppm in fluoride ion?

Answers

In order to make a solution that is 1.5ppm in fluoride ion using sodium fluoride (NaF), 750L of water needs to be added to 0.22g of NaF.

Mass of NaF (g) = Concentration of F (ppm) x Volume of Water (L) / 1,000,000.

NaF mass = 1.5ppm x 750L / 1,000,000.

Since the atomic weight of NaF is 41.99, 0.22g is equivalent to 0.00518mol NaF.

The molarity (M) of the solution,

Molarity (M) = Moles of Solute (mol) / Volume of Solution (L)

Molarity 0.00518mol / 750L = 0.000068M.

Therefore, 0.22g of NaF should be added to 750L of water to make a solution that is 1.5ppm in fluoride ion.

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(a) Calculate the number of moles in 12.25 kg of ammonium chloride (NH4Cl) Relative Formula Mass (Mr) = 53.5
answer in standard for to 2 sf​

Answers

The number of moles in 12.25 kg of ammonium chloride would be 229.02 moles.

Number of moles

To calculate the number of moles of ammonium chloride (NH4Cl) in 12.25 kg, we need to use the formula:

Number of moles = Mass / Molar mass

First, we need to calculate the molar mass of NH4Cl, which is the sum of the atomic masses of all the atoms in one mole of the compound:

Molar mass of NH4Cl = (1 x atomic mass of N) + (4 x atomic mass of H) + (1 x atomic mass of Cl)

= (1 x 14.01) + (4 x 1.01) + (1 x 35.45)

= 53.49 g/mol (rounded to two decimal places)

Now we can use the formula to calculate the number of moles:

Number of moles = Mass / Molar mass

= 12,250 g / 53.49 g/mol

= 229.02 mol (rounded to two decimal places)

Therefore, there are 229.02 moles of ammonium chloride in 12.25 kg of the compound.

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the specific heat of plastic is 50 times greater than the specific heat of lead, 10 times greater than the specific heat of stone, and 1.5 times greater than the specific heat of water. if the samples of plastic, lead, stone, and water have identical masses and identical starting temperatures, and are given identical increases in energy of 1,000 j, which sample will end up with the highest temperature?

Answers

The substances that is going to end up with the highest temperature in the list is water.

How does heat capacity affect temperature rise?

Heat capacity is the amount of heat energy required to raise the temperature of a substance by one degree Celsius or one Kelvin. It is a measure of the substance's ability to store heat. The greater the heat capacity of a substance, the more heat energy it can absorb before its temperature rises significantly.

When heat is added to a substance, the temperature of the substance increases. The amount by which the temperature increases depends on the amount of heat added and the heat capacity of the substance.

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in the solidifcation process the production of metallic slabs or ingots is known as the process of turning the metallic slabs or ingots into useful shapes is known as

Answers

The process of turning metallic slabs or ingots into useful shapes is known as "hot working" or "hot forming".

Hot working is a metalworking process where metals are shaped when they are above their recrystallization temperature. This process is usually done after a metal has been solidified from its molten state. It involves the application of force to change the shape of the metal, usually by compressing, drawing, forging, or extruding.

The temperature used during hot working can vary depending on the type of metal, but typically it must be at least half of the metal's melting point temperature. By hot working, the metal can be formed into various shapes, including thin sheets, rods, and tubes.

In the hot working process, the metal is heated until it reaches the recrystallization temperature and then deformed by mechanical means, such as hammering or rolling. The metal is then cooled down, either slowly or rapidly, depending on the required properties of the metal. Rapid cooling will increase the strength of the metal but also make it brittle, while slower cooling will give the metal more ductility. During cooling, some of the metal grains are recrystallized, leading to a homogeneous microstructure.

Hot working is an important process for many metal fabrication industries, including automotive, aerospace, and construction. It is used to create metal parts and components with superior strength and ductility, as well as for creating metal artworks or sculptures. The process is also widely used in metal recycling, where it is used to reshape and reform metals from their original form. Hot working can be a complex process and is typically done by highly skilled metalworkers.

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Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 25() + 3 O2(g) + 4 NaOH(aq) → 2 Na2SO4(aq) + 2 H2O(l) 049) ONaOH(ag) O S(s) None of these substances is the limiting reactant 

Answers

The limiting reactant is Sulphur,  according to the chemical reaction given in the question.

Let's take the balanced chemical reaction in the question

2S + 3O₂ + 4NaOH → 2Na₂SO₄ + 2H₂O

Here,

We have to identify the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide.

First, we need to calculate the moles of each substance, and then we can find out the limiting reactant.

Let's do it one by one.

Mole of sulphur (S) = 2 g/32 g/mol = 0.0625 moles

Moles of Oxygen (O2) = 3 g/32 g/mol = 0.09375 moles

Moles of Sodium Hydroxide(NaOH) = 4g/40g/mol = 0.1 moles

Now, we have to compare the number of moles of each substance to find out the limiting reactant.

Here we can see that the number of moles of sulphur (S) is the least among all the reactants, i.e., 0.0625 moles.

Hence, the limiting reactant is sulfur (S).

Therefore, the correct answer is "sulphur."

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Two paths in a park intersect so that one of the angles at the intersection is 75°. What are the three other angle measurements formed by the intersection? A. 15°, 75°, 175° B. 65°, 105°, 135° C. 75°, 105°, 105° D. 75°, 115°, 115°

Answers

If one of the angles at the intersection is 75°, then the other three angles must add up to 180° (since they are forming a straight line).

To find the other angles, we can subtract 75° from 180° to get 105°. Then, since there are two other angles, we divide 105° by 2 to get 52.5°.

So that means, the three other angle measurements formed by the intersection are:

B. 65°, 105°, 135°

what causes the difference between ruby and corundum? choose one: a. impurities in the mineral b. formation pressure c. formation temperature d. mineral structure

Answers

The difference between ruby and corundum is caused by impurities in the mineral.

Ruby is a variety of the mineral corundum, where corundum itself is composed of aluminum oxide. The addition of trace elements such as chromium, titanium, and iron can turn a corundum into ruby.

The different impurities give the ruby its characteristic red color, while corundum remains colorless.

Ruby and corundum form in different conditions. Ruby typically requires higher pressure and temperatures than corundum.

The pressure of the Earth’s mantle helps the aluminum oxide and trace elements combine to form ruby, while corundum forms at lower pressures. Corundum can also form at higher temperatures and pressures, but this is less common.

Finally, the structure of the two minerals is different. Ruby has a trigonal structure, while corundum has an orthorhombic structure. The different impurities, pressures, and temperatures combine to create the two distinct minerals.

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which three acids are used during this laboratory? give names and formulas for each. also indicate whether each acid is weak or strong and whether each acid is an oxidizing acid. acid formula acid name strong or weak? oxidizing or not? 1. 2. 3.

Answers

In this laboratory, the following three acids are used: Hydrochloric acid (HCl) with a formula of HCl, Sulfuric acid (H2SO4) with a formula of H2SO4, and Nitric acid (HNO3) with a formula of HNO3.Acids are known to be oxidizing agents, meaning that they are capable of accepting electrons to reduce other species.

Strong acids are those that completely dissociate into their constituent ions in aqueous solution. Hydrochloric acid, sulfuric acid, and nitric acid are all strong acids.

Here are the acids used during this laboratory: Acid Formula Name Strong or weak? Oxidizing or not?  

1. (HCL)Hydrochloric acid Strong (Yes) 2. (H2SO4) Sulfuric acid Strong (Yes) 3. (HNO3) Nitric acid Strong (Yes) Acids are used in various laboratory experiments due to their unique chemical and physical properties.

They are used as reactants in many chemical reactions, as solvents for various compounds, and as catalysts for several reactions, among other applications.

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How many liters does one mole of gas occupy at STP?

Answers

At STP, one mole (6.02 × [tex]10^{23}[/tex] representative particles) of any gas occupies a volume of 22.4 L . A mole of any gas occupies 22.4 L at standard temperature and pressure (0°C and 1 atm).

the mass of a single atom of an element which has only one stable isotope is 1.79*10^-22 grams. what is the atomic weight of the element

Answers

The atomic weight of the element is 1.79 × 10-22 grams

The atomic weight of an element is the average mass of its atoms relative to the mass of an atom of carbon-12, which is defined as 12.0000 atomic mass units (amu).

Since the element has only one stable isotope, its atomic weight is equal to the mass of a single atom of the element in amu.

Converting the given mass of a single atom from grams to amu:

1.79 x 10^-22 g x (1 amu / 1.66054 x 10^-24 g) = 1.079 amu

Therefore, the atomic weight of the element is 1.079 amu.

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the ability to predict the consequence of an action is located in the group of answer choices gustatory cortex. olfactory receptors. left cerebral hemisphere. prefrontal cortex. right cerebral hemisphere. two people start from the same point. one walks east at 9 mi/h and the other walks northeast at 8 mi/h. how fast is the distance between the people changing after 15 minutes? (round your answer to three decimal places.) mi/h Iwo Jima was an important victory for U.S. troops in the Pacific because it:made it easier for the U.S. to bomb Japan.convinced Germany that defeat was inevitable.convinced the Japanese to surrender.had a lot of important natural resources. ats17This is a graded discussion: 5 points possibleUnit 4 DiscussionPlease post detailed answers to the following questions. Please use complete sentences.Where do you go or look when you want to learn about something new? List and explain three ways that you try to discover new information,and include the pros/cons of each as well. Here is an example of ONE. Remember this example is only one part of three that you need to list.EXAMPLE:1. Encyclopedias - I look in reference books when I want to learn something new. The pro is that they are well-edited and revised, so theinformation is accurate. The con is that they are not updated frequently.I need an answer asap Where do the Hallidays make Black people (runaway slaves) eat?uncle Toms cabin if 10 friends are going to occupy 10 seats in shuttle on the way to the airport, how many different ways can they arrange themselves in the shuttle? provide your answer below: Read the excerpt from a speech petitioning people to adopt animals in need. Which ideas from the excerpt would be most appropriate to include in a summary? Select two options an open rectangular gutter is made by turning up the sides of a piece of metal 20 in wide. the area of the cross section of the gutter is 50 in^2 find the depth of the gutter portfolio a has an expected return of 17 percent and a standard deviation of 5 percent. portfolio b has an expected return of 15 percent and a standard deviation of 5 percent. which portfolio would a rational investor choose? find the non permissible replacement for (x ^ 2 + 1)/(2x + 10) a bag contains 3 black ,4 red and 2 green balls if two balls are drawn at random what's the probability of getting exactly 2 balls A population is normally distributed with a mean of 56 and a standard deviation of 12.What is the mean of the sampling distribution for this population? Suppose you start with a full tank of gas (14 gallons) in your truck. After driving 5 hours, you now have 5 gallons left. If x is the number of hours you have been driving, then y is the number of gallons left in the tank. At what rate is the gas left in the tank changing? State your answer as a reduced fraction. You have read two articles about Maya society.Write an essay in which you identity a common central idea of both articles and analyze the way the idea is developed in each article. Be sure to use details from both articles to support your analysis. (the two articles are Each in His Place by Robin Varnum and Who Were the Maya? by Diana Childress.) Write a 3-8 sentence paragraph as to how Sea urchins use Natural selection. 20 points and will mark the brainliest! true or false: in the days after childbirth, all new mothers feel a rush of energy and sense of well-being. Application of Hazen Williams equation: What is the unit headloss (ft/1,000 ft) expected in a 16-in diameter of a PVC pipeline (C = 130) carrying 2700 gpm? (hint: Assume L=1000ft anf then calculate headoss.)a. 16 b. 4 c. 2 d. 12 is freezing an endothermic or exothermic process? how do you know?(1 point) responses freezing is exothermic because as water bonds into ice, the energy from bond formation is released and heats up the surrounding environment. freezing is exothermic because as water bonds into ice, the energy from bond formation is released and heats up the surrounding environment. freezing is exothermic because as water bonds into ice, the bonds absorb energy from the environment in order to change states. freezing is exothermic because as water bonds into ice, the bonds absorb energy from the environment in order to change states. freezing is endothermic because as water bonds into ice, the energy from bond formation is released and heats up the surrounding environment. freezing is endothermic because as water bonds into ice, the energy from bond formation is released and heats up the surrounding environment. freezing is endothermic because as water bonds into ice, the bonds absorb energy from the environment in order to change states. freezing is endothermic because as water bonds into ice, the bonds absorb energy from the environment in order to change states. brainly the perceived demand curve for the is . select the correct answer below: perfectly competitive firm; also the market demand curve perfectly competitive firm; downward sloping monopolist; upward sloping monopolist; also the market demand curve THE GIVER FINISH THE SENTENCE The painful memories bring the Receiver wisdom because ...