This is science not chemistry

Answer:

h = 34.2 in

Explanation:

h = 3.0a + 28.2

h = height of a girl.

a = age of a girl.

h = 3.0a + 28.2

h = 3.0(2) + 28.2

h = 6 + 28.2

h = 34.2

The estimated height of a 2-year-old girl is 34.2 in.

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Answer:

This is true. A hot glass does look the same as a cold glass. Glass won't change its look if it's below 648 degrees Celsius.

Answer:

you're righttttttttttttttttttttt

Answer:

yes because my class went over sum like that

Explanation:

Answer:

a no. because tearing the raw meat will not be easy without the use of the canine teeth

Answer:

3

Explanation:

The amount of mass per given vol

Answer:

physical quantity is used for measuring mass.

have a great day God bless you

Answer:

The answer is B, in this case.

Explanation:

An isomer is a molecule with the same number of atoms as another compound, but they differ in arrangement of the atoms.

Answer:

Q.4) C. Methane

Q.7) A. False

Q.8) A. True

Answer:

C6 H12 O6

Explanation:

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The chemical formula for glucose is C6H12O6. This means that there are 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen in a single molecule.

Answer:

It is a compound made up of one Calclum atom and 2 Chloride atoms.

It comes from a synthesis based reaction:

Ca + Cl = CaCL2

The letters you see are the abbreviations of the elements taken from the periodic table of elements.

Explanation:

The formula of calcium chloride is CaCl2, the  letters  are the symbolic form of chemical compound and numbers are the total number of moles of the chemical compound.

A mole is the single or the smallest form of any chemical compound or element and it can be in any member but the value of one mole will always be equal to the 2.303 × 10²³ of the carbon atom.

In CaCl2, the Ca is the symbol of calcium and Cl is the symbol of chlorine and the 2 Witten after Cl is the total number of moles attached with it which is making the whole chemical.

Therefore, formula of calcium chloride is CaCl2, the  letters  are the symbolic form of chemical compound and numbers are the total number of moles of the chemical compound.

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Answer:

To get number of neutrons, you must have the mass number and atomic number of that atom.

[tex]neutrons = mass \: number - atomic \: number \\ [/tex]

atomic number is number of protons

Answer:

10 mL

Explanation:

1 L = 10^3 mL

0.01 L x 10^3 mL = 10 mL

Answer:

0.01 L=10ml

SEE the IMAGE FOR SOLUTION

Answer:

Reha should apply 540 N to lift Neha.

Explanation:

L = 360 N

LD  = 60 m

E =?

ED = 40m

NOW

L * LD = E * ED

360 *60 = E*40

21600/40 = E

540 N = E

Answer:  MgCl2

Explanation:

Convert the masses of Mg and Cl to moles:

Mg:  1.2g/24g/mole = 0.050 moles

Cl:    3.55g/35.5g/mole = 0.100 moles

The ratio of Cl to Mg is 2 to 1:  (0.100 moles Cl/0.050 moles Mg),  Therefore there must be 2 Cl for every Mg:

MgCl2

This is the empirical formula since all we know is the ratio.  If could also be Mg2Cl4, Mg3Cl6, etc,  [i.e., (MgCl2)n]

Answer:

B)4

Explanation:

no, the box would not accelerate

Answer:

[tex]thank \: you[/tex]

Answer:

Soil pollution is defined as the presence of toxic chemicals (pollutants or contaminants) in soil, in high enough concentrations to pose a risk to human health and/or the ecosystem.

Answer:

2.5N

Explanation:

since force is inversely proportional to square of the distance apart. that means the ratio of distance apart. so u have 12800×12800÷(6400××6400)=4/1

so the weight will be reduced to 1/4 of 10N

Answer:

A salt that is dissolved in water is called a solute

Once you have dissolved the salt - you have a solution

The water is called the solvent

Explanation:

We have that When salt dissolves completely into water the water is called a Solvent

it is important to not that once the salt compound comes into water it breaks down the molecule apart the Na on one hand and the Cl on the other hand

Once the NaCl is dissolved in to the H_2O it is known as a solute of salt

And when When salt dissolves completely into water the water is called a Solvent

Therefore

When salt dissolves completely into water the water is called a Solvent

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The Orion constellation which can be seen all around the world is positioned upon its celestial equator and it is among the noticeable and distinctive constellations in the sky. It is thought to be a Greek Mythology named after a hunter.

The Orion Nebula forms from dust, hydrogen as well as other ionized gases.

The tale and myth of Orion have various variations and explanations but one of the most popular ones is that Orion declared himself as the topmost and strongest hunter in the world.

Therefore, we can conclude that the constellation Orion made using a telescope are Myth.

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Answer:

B. inferring

Explanation:

The chemical formula for peracetic acid is C2H4O3. This means that there are 2 atoms of carbon, 4 atoms of hydrogen, and 3 atoms of oxygen in a single molecule.

I think that the answer is C2H4O3.

Answer:

one_falf.

Explanation:

Cuz for a first order rection is half life independent of concentration and constant over time.

Answer:

To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.

Explanation: