What mass (in g) of nitrogen are needed to react completely with 5.8 g of hydrogen?
N2 + 3H2 -> 2NH3
A. 5.8g N2
B. 81 g N2
C. 76 g N2
D. 27 gN2

Answers

Answer 1

Answer:

D

Explanation:

1 mole of N2 reacts with 3 moles of H2

28 g of N2 reacts with 6g of H2

x will react with 5.8g of H2

x= (28*5.8)/6

= 27.0g


Related Questions

__ H₂ + ___ O₂ → ____H₂O

Answers

2H2+O2=2H2O

This is the chemical formula for water. Hope this helps.

Answer:

2H2+O2=2H2o

Explanation:

We have 2 hydrogens, 2 oxygens on the left-hand side.

But only 1 O on the right-hand side.

let's place a 2 before H2O (water)

Do you drink H2O every day?

But balancing the O unbalanced H

So the balanced chemical equation will look like this:

2H2O+O2=2H2O

What element was oxidized and reduced in this reaction and what is the oxidizing and the reducing agent for this reaction? Au(NO3)3 + Cu ——> Cu(NO3)2 + Au

Answers

Answer: Cu is oxidized while Au is reduced. The oxidizing agent is Au while the reducing agent is Cu

Answer:

Both blanks are "Ag"

(:

Explanation:

A 35.2-mL, 1.66 M KMnO 4 solution is mixed with 16.7 mL of 0.892 M KMnO 4 solution. Calculate the concentration of the fi nal solution.

Answers

The concentration of the final solution is 1.41[tex]\frac{mol}{L}[/tex].

Now, first calculate the number of moles of first solution:

[tex]M_{1} =\frac{no. of moles of solution}{total volume of solution}[/tex]

no. of moles we have to find

total volume is 0.0352L and molarity of solution is 1.66M

The total number of moles of solute present in a given solution per litre is known as its molarity. In contrast to mass, which varies as the system's physical circumstances vary, the volume of a solution changes as a function of changes in the system's physical qualities, such as pressure and temperature. This has an impact on the molality of the solution. The symbol M, sometimes known as a molar, denotes molarity.

[tex]1.66=\frac{n}{0.0352}[/tex]

on solving we get,

n=0.0584 mol

Now, find the number of moles of second solution by the same formula used to find the moles of first solution,

molarity of second solution is 0.892M and total volume is 0.0167L

Now, put the values in the formula,

[tex]0.892=\frac{m}{0.0167}[/tex]

On solving we get,

m=0.0149 mol

and to find the concentration of new solution number of moles is equal to the sum of moles of first solution and second solution.

x=m+n

x=0.0584+0.0149

x=0.0733 mol

Now, molar concentration is,

[tex]M=\frac{x}{V}[/tex]

[tex]M=\frac{0.0733}{0.352+0.0167}[/tex]

On solving we get,

M=1.41[tex]\frac{mol}{L}[/tex]

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Which of the following statements correctly identifies the decomposition reaction and describes a substance involved

Answers

Option C. Decomposition reaction: a substance involved is oxygen.

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more simpler substances.

Decomposition Reaction Involving Oxygen

A decomposition reaction is a type of chemical reaction where a single compound is broken down into two or more simpler substances. In the reaction, energy is typically used to break down the bonds that hold the molecules of the compound together. Oxygen is often a substance involved in the reaction, as it is used to provide the energy needed to break down the compound. When oxygen is involved, the reaction is sometimes referred to as an oxidation reaction.

Since the question is not complete, here's the full task:

Which of the following statements correctly identifies the decomposition reaction and describes a substance involved?

Choose the right option:

A. Combustion reaction: a substance involved is oxygen

B. Combustion reaction: a substance involved is a hydrocarbon

C. Decomposition reaction: a substance involved is oxygen

D. Decomposition reaction: a substance involved is a hydrocarbon

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how do the three experiments compare click on all the statements that are true about the comparisons

Answers

My friend. Next time, add an image.

Using Tables 1 to 3, what pattern do you observe in terms of the phase, number of carbon atoms, structure and boiling point of the alkanes, alkenes, and alkynes? Explain the patterns you observe.

Answers

As the number of carbon atoms increases the phase changes from gas to liquid,length of chain increases and also the boiling point increases in case of alkanes, alkenes, and alkynes.

What is an atom?

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

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BRAINLIEST!!HELP PLEASEEEE2. Use the following chemical equation to answer the question.

4K(s) + O2(g) → 2 K20 (s)

If a staff member at a laboratory has 12. 0 grams of potassium metal, what is the

theoretical yield of potassium oxide (K2O) that the scientist could potentially

produce from the reaction with oxygen gas?

Answers

If a laboratory employee has 12.0 grammes of potassium metal, the theoretical yield of potassium oxide that even the scientist may theoretically make from the reaction with oxygen gas is 14.5 gram of K2O.

In chemistry, yield, also known as reaction yield, is a measurement of the number of moles of a product created in ratio to the reactant consumed in a chemical reaction, generally represented as a percentage. Before performing chemical reactions, it is necessary to know how many product will be produced with certain reactant quantities. This is referring to the theoretical yield.

This approach is useful for calculating the theoretical yield of such a chemical process. The yield of a reaction represents how much product is generated by that reaction. The theoretical yield is the amount of product predicted by stoichiometry, whereas the actual yield is the amount produced.

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A 36-gram sample of water has an initial temperature of 220C. After the sample absorbs 1200 joules of heat energy, the final temperature of the sample is

Answers

The specific heat of water is equal to 1200 joules / (36 grams × (240C - 220C)) = 16.7 joules/gram・°C.

What is temperature?

Temperature is a measure of the average kinetic energy of the particles in a material. It is measured in degrees on the Celsius, Kelvin and Fahrenheit scales. Temperature is an important factor in many physical and chemical processes, such as the rate of chemical reactions, the speed of sound, the intensity of light and the properties of gases.

The specific heat of water, c, is calculated using the equation c = Q / (m × ΔT), where Q is the amount of heat energy, m is the mass of the sample and ΔT is the change in temperature.

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What is true of a chemical reaction?a. Products and reactants must be balanced.
b. Subscripts must be used with all products and reactants
c. Energy must be included in the beginning of the reaction
d. Coefficients must be used with all products and reactants​

Answers

Answer: The product and reactant must be balanced

Explanation:

Please help, no link please.

Answers

Answer:

C if not A

Explanation:

Draw the structure for the product of the reaction between 2-butene and hydroiodic acid, HI.

Answers

The product of the reaction between 2-butene and hydroiodic acid (HI) is 2-iodobutane.

The reaction mechanism involves a nucleophilic substitution, where the iodine atom in HI acts as the nucleophile and attacks the carbon atom in the double bond of 2-butene. This results in the formation of a carbocation intermediate, which then undergoes a rearrangement to form 2-iodobutane. The overall reaction can be represented as follows: 2-butene + HI → 2-iodobutane + H2.Nucleophilic substitution is a type of chemical reaction in which a nucleophile (a molecule or ion with a lone pair of electrons) attacks an electron deficient species, known as an electrophile, to form a new chemical bond. In the process, the electrophile's original electron pair is replaced by the nucleophile. Nucleophilic substitution reactions can occur in a variety of ways, such as S N 1, S N 2, and S Ni (where i = 1, 2, or any other number).

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In a titration experiment, a 12.5 mL sample of 1.75 x 10^-2 M Ba(OH) 2 just neutralized 14.5 mL of HNO 3 solution. Calculate the molarity of the HNO 3 solution.

Answers

The number of moles must be equal, the ratio of the molarity of each must be equal to the ratio of the volumes used.

What is experiment?

An experiment is a procedure or set of procedures used to test a hypothesis or explore a cause and effect relationship. It is a scientific method of investigation in which the investigator manipulates one or more independent variables and measures the subsequent effect on one or more dependent variables. Experiments are conducted to answer questions, test theories, and gain insight into cause-and-effect relationships.

The molarity of the HNO 3 solution can be calculated using the equation:
Molarity of HNO3 = (volume of HNO3 * molarity of Ba(OH)2) / volume of Ba(OH)2
Molarity of HNO3 = (14.5 mL * 1.75 x 10^-2 M) / 12.5 mL
Molarity of HNO3 = 1.4 x 10^-2 M
This equation works because the number of moles of HNO3 neutralized by the Ba(OH)2 must be equal to the number of moles of Ba(OH)2 used. The number of moles of each can be determined by multiplying the molarity of each by the volume used, and since the number of moles must be equal

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How many ATP does glycolysis produce 4 ATP?

Answers

Energy is released when glycolysis occurs, and this energy is utilized to create four molecules of ATP. As a result, glycolysis produces a net gain of two ATP molecules.

What is glycolysis?

The metabolic mechanism that transforms glucose to pyruvate is known as glycolysis. This free energy is utilized to create the high-energy molecules adenosine triphosphate and reduced nicotinamide adenine dinucleotide. Glycolysis is a series of 10 enzyme-catalyzed processes. The initial stage in the breakdown of glucose to extract energy for cellular metabolism is glycolysis. Glycolysis is divided into two phases: energy-requiring and energy-releasing. Glycolysis is the process of breaking down glucose to create energy. It generates two pyruvate molecules, ATP, NADH, and water. The process occurs in a cell's cytoplasm and does not require oxygen. It can be found in aerobic and anaerobic organisms.

Here,

When glycolysis happens, energy is released, and this energy is used to build four molecules of ATP. As a result of this, glycolysis generates a net gain of two ATP molecules.

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Place the following molecules in order of decreasing bond angle: NH3, CO2, CCl4, OF2
O CO2 > CCl4 > NH3 > OF2
O NH3 > CO2 > CCl4 > OF2
O CO2 > CCl4 > OF2 > NH3
O CCl4 > CO2 > OF2 > NH3
O OF2 > NH3 > CCl4 > CO2

Answers

The order of decreasing bond angle for the given molecules is :

O OF2 > NH3 > CCl4 > CO2

In molecules with a central atom, the bond angle is determined by the electron pair-bond pair repulsion. The bond angle decreases as the number of electron pair-bond pair increases. In OF2 the central atom is O, and it has 2 lone pairs and 2 single bonds, the bond angle is expected to be smaller than in the other molecules.In NH3, the central atom is N, and it has 3 single bonds and 1 lone pair, the bond angle is expected to be larger than in OF2 but smaller than in CO2 and CCl4. In CO2 and CCl4, the central atoms are C and Cl respectively, and they have 4 single bonds and no lone pairs, the bond angle is expected to be larger than in NH3, but smaller than in OF2.

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like tobacco smoke, the aerosol given off by an e-cigarette can contain dangerous chemicals.

Answers

Yes, the aerosol given off by an e-cigarette can contain dangerous chemicals, such as nicotine, ultrafine particles, volatile organic compounds, and heavy metals.

Inhaling these chemicals can increase the risk of lung and heart disease.

E-cigarettes are becoming increasingly popular as an alternative to tobacco-based cigarettes. However, many people are unaware of the potential dangers associated with using e-cigarettes. The aerosol produced by e-cigarettes can contain not only nicotine, but also other chemicals and particles that can be harmful to the user’s health. These include ultrafine particles, volatile organic compounds, and heavy metals such as lead and nickel.

When these particles and chemicals are inhaled, they can cause inflammation and irritation of the lungs and airways, leading to a variety of respiratory illnesses.

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Jaiden Drives for 800 km at an average speed of 120 km/h. How long was her journey?

Answers

Answer:

i think her journey was 680 km/h long

Answer:

6.67 hours

Explanation:

(800 km) / (120 km/hr) = 6.67 hours

(05.04 LC)
How many moles of sulfuric acid (H₂SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH)?
2LIOH + H₂SO4 → Li2SO4 + 2H₂O
O 3.4 mol H₂SO4
O 6.8 mol H₂SO4
O 10.2 mol H₂SO4
O 13.6 mol H₂SO4

Answers

3.4 mole of H₂SO₄ are needed to react completely with 6.8 moles of lithium hydroxide (LiOH).

Is lithium hydroxide harmful to humans?

When breathed in, lithium hydroxide monohydrate can have an impact on you. Lithium Hydroxide Monohydrate is a HIGHLY CORROSIVE CHEMICAL, and contact with it can cause serious skin irritation, eye damage, and burning. Lithium Hydroxide Monohydrate inhaled can irritate the throat and nose.

From the stichiometry of the reaction: 2 LiOH + H2SO4 → Li2SO4 + 2H2O

It is evident that 2.0 moles of LiOH reacts with 1.0 mole of H2SO4 to produce 1.0 mole of Li2SO4 and 2.0 moles of H2O.

Using cross multiplication:

1.0 mole of H2SO4 reacts completely with → 2.0 moles of LiOH

x mole of H2SO4 are needed to react completely with → 6.8 moles of LiOH

since number of moles of H2SO4 = ( 1.0 x 6.8 ) / (2.0) = 3.4 mole of H2SO4.

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how many grams of C are in 500g or NaHCO3​

Answers

Answer: 71.43g

Explanation: The RMM of NaHCO3 is

23+1+12+16(3)=84.

There is one carbon in NaHCO3 thus there are 1×12g of C in NaHCO3.

Thus

85gNaHCO3-----12g C

500gNaHCO3---- xgram

(500×12)÷84= 71.43

What kind of organic compound is ethanoic acid?

Answers

Answer:

Acetic acid , systematically named ethanoic acid , is a colourless liquid organic compound with the chemical formula CH3COOH.

Explanation:

Explain how observations differ from inferences?

Answers

And observation should have some thing that you observe while an inference is something that you guessed about. Hope this helps :-)

Equations and inequalities
LITERAL EQUATIONS
Given the formula shown here, make r the subject of the formula.
Α = 2πχh + 2πη
This equation has the following restrictions:
h = -1
INSTRUCTION: Type pi for
Answer:
Type here to search given the formula shown here make r the subject of the formula A=pi rh+2pi r​

Answers

Hope u the right answer, I needed points

What happens when light hits the pigment in photosystem II?

Answers

Answer:

The most common and abundant pigment is chlorophyll a. A photon strikes photosystem II to initiate photosynthesis. Energy travels through the electron transport chain, which pumps hydrogen ions into the thylakoid space. This forms an electrochemical gradient.

Eighth grade > F.5 Compare physical and chemical changes B6V What do these two changes have in common? burning food on a stove deep-frying chicken Select all that apply. Both are only physical changes. Hoth are chemical changes. Both conserve mass. Both are caused by heating.​

Answers

Answer:

both are caused by heating

Which type is a metamorphic rock formed from shale

- Slate

- Sandstone

-Limestone

-Gneiss

Answers

slate is the correct answer i PROMISE

(. ^ ᴗ ^.)

Matter with a ___ luster reflects little light from its surface.

Fill the blank

Answers

Matter with a Dull luster reflects little light from its surface.

Minerals with dull luster reflect very little light.

What is Luster?

The term "luster" refers to the light reflection from a mineral's surface. To define lustre, mineralogists use specific terminology. The mineral's metallic or non-metallic nature can be used to categorise lustre in a straightforward manner. Metallic lustre can be seen in opaque, sparkling minerals like pyrite. Quartz is one example of a mineral with a non-metallic shine.

Metallic lustre denotes a sheen akin to polished metal. Clean, polished chunks of chrome, steel, titanium, copper, and brass, as well as many other minerals, all have a metallic shine. The most prevalent nonmetallic lustre is glassy, which denotes that the mineral's surface reflects light like glass. The most typical sort of mineral, feldspars, must have a pearly shine to be recognised. Similar to how pearls reflect light, pearly lustre describes a delicate iridescence or colour play in the reflected light. To reflect light with a silky sheen is to be silky. The sheen of hardened bacon fat is comparable to that of grease.Light is reflected relatively little by minerals with a poor sheen. It takes a little practise to spot lustre. Keep in mind to separate shine from colour.What is Dull Luster?

Due to their coarse granulations, which scatter light in all directions and resemble a Lambertian reflector, dull (or earthy) minerals have little to no shine. Kaolinite is one Example.

Different types of non-metallic luster

Luster                  Appearance

Adamantine            Sparkly

Earthy                    Dull, clay-like

Pearly                    Pearl-like

Resinous            Like resins, such as tree sap

Silky                    Soft-looking with long fibers

Vitreous                    Glassy

What are Minerals?

Minerals are inorganic solids that exist in nature and have a distinct chemical composition and crystal lattice structure. Even though thousands of minerals in the earth have been found, only ten minerals—plagioclase, quartz, orthoclase, amphibole, pyroxene, olivine, calcite, biotite, garnet, and clay—make up the majority of the crust's volume.

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Thermal energy always moves from _ _ _ _ to _ _ _ energy.

Fill in the blanks.

Answers

Thermal energy always moves from higher energy area to lower energy area over a temperature gradient.

What is thermal energy?

Thermal energy is a form of energy by virtue of temperature of a body. As the temperature of a body increase its thermal energy increases. Thermal energy or heat energy transfers though medium and vacuum from higher energy area to lower energy area.

Heat transfer can be through conduction in solids, convection in fluids and by radiation through space. In conduction, the thermal energy easily transfers through a chain of close packed molecules.

In all these mode of heat transfer heat energy is flowing from a hotter region to a colder region.

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The photoelectron spectrum for the element nitrogen is represented above. Which of the following best explains how the spectrum is consistent with the electron shell model of the ato
f the atom?
A. The leftmost peak represents the valence electrons.
B. The two peaks at the right represent a total of three electrons.
C. The electrons in the ls sublevel have the smallest binding energy
D. The electrons in the 2p sublevel have the smallest binding energy

Answers

The electrons in the 2p sub level have the smallest binding energies, which is the best explanation for how the spectrum is consistent with the electron shell model of the atom. Option D is correct as a result.

Photoemission spectroscopy, often referred to as photoelectron spectroscopy, measures the amount of energy emitted by electrons from solids, gases, or liquids via the photoelectric effect. This procedure involves getting the energy for the electrons from an outside source, such as sunlight.

The photoelectric effect is a process in which electrons receive energy from an external source, such as sunlight, become excited, and transition from the ground state to the excited state. As a result of this process, there is a constant flow of electrons, which in turn causes a flow of energy.

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help me, it’s pretty easy science moon stuff !

Answers

Hello :)
Based on the information I received reading the picture, the answer should be “B”

Explanation: if I am wrong I’m very sorry. But that should be the answer
I believe it should be B.

For each of the following balanced chemical equations, write all possible mole ratios: a. 2Ca + O2 ⎯→ 2CaO b. Mg + 2HF ⎯→ MgF2 + H2

Answers

The mole ratio of the reactants and products is

a. 2 : 1 : 2

b. 1: 2:1:1

The ratio of the mole quantities of any two compounds present in a balanced chemical reaction is known as the mole ratio. A comparison of the ratios of the molecules required to accomplish the reaction is given by the balancing chemical equation. The coefficients of each species in the reactants and products are used to calculate the mole ratio of the reactants and products. The mole ratio of the reactants and products, as demonstrated by the equation in the question, is 2: 1: 2 and 1:2:1:1 respectively.

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What is the density (using proper sig figs) of a rock with a volume of 6.7 mL and a mass of 12.34 grams?

Answers

Density is an intensive property as it does not depend on the quantity of the substances Whereas mass and volume are extensive property. Therefore, the density of a rock with a volume of 6.7 mL and a mass of 12.34 grams is 1.841g/ml.

What is density?

Density tells about the compactness of the substances, how much dense is the substances in other words. Object that is more denser than water they just sink in the water.

Mathematically,

Density of rock = Mass of the rock ÷volume marked on the graduated cylinder

volume of rock= 6.7 mL

mass of rock= 12.34 grams

Substituting all the values in above formula, we get

Density of rock=  12.34 grams÷6.7 mL

                           =1.841g/ml

Therefore, the density of a rock with a volume of 6.7 mL and a mass of 12.34 grams is 1.841g/ml.

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In a short paragraph, discuss the kinds of jobs that Americans can aspire to. All of the following are properties used to classify elements as metals, nonmetals & metalloids EXCEPT-texture-conductivity-luster-malleability Which of the following contains an error in verb voice? (5 points)Question 19 options:1) I might lose more weight if I exercised more often.2) We could get together more often if I were not so busy.3) If you would like to join us, then stop playing that game.4) You are happier if you gave up that annoying habit. Is 10 12 15 a right triangle? Which of the following does NOT improve a species ability to survive? A adaptations B. increased genetic variation C increased reproductive rates D. competition How do you find the base and height of an isosceles triangle? A 9.5 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 2390 J by the time the rocket motor burns all of the fuel. The acceleration of gravity is 9.8 m/s. What additional height will the rocket rise? Answer in units of m. Use the most recent C.F.R. Index (published by Thomson Reuters/West). a. Which C.F.R. title and part deal with the adulteration or misbranding of infant formulas? b. Which C.F.R. title and part deal with using a badge, emblem, or insignia on advertisements for wine? (i) Review this provision. May a bottle of wine used in an ad display the U.S. Navy flag or insignia? (ii) What provision governs your answer? c. Which C.F.R. title and part deal with Flammability standards for children's sleepwear (size 3)? Which organism is made up of cells that have both a cell membrane and a cell wall? What are the 7 components of public speaking? In France, the people directly elect the president and most legislators.Group of answer choicesTrueFalse U. S. Currency is part of. a. M1 only b. M2 only c. M3 only d. M1, M2, and M3 What is a ground fault interrupter (GFI)? Which cloud computing concept allows users to store files on a cloud-based server when necessary, but can also copy that data from the cloud and put it back on the device when space once again becomes available on the device An investor who buys the common stock of a levered firm is subject to more risk due to the addition of please help me tysm!!!! will report if the answer is not acceptable and will give brainliest for correct answer!!!Using a print source (such as a newspaper or magazine) or the Internet, find visual examples of each of the logical fallacies, that is, advertisements with a picture that illustrates one of the fallacies. Each image should contain text that expresses the particular fallacy.Explain how that advertisement commits the fallacy.Discuss why the advertisement contains the fallacy. For example, look at the advertisement below, and the paragraph following it: How many 1/3 cubes does it take to fill a box with a width of 2 2/3 inches length 3 1/3 inches and height 2 1/3 What impact did the closing of the steel mills have on Western PA? What is the meaning of this political cartoon A survey of 100 high school students provided this frequency table on how students get to school: What is the probability that a randomly selected student is a senior or a student who drives to school? [ ? P(Senior U Drive to school) Remember to reduce your answer.