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3 years ago

Is the mass of the reactants always equal to the mass of the products in a chemical reaction?

Chemistry

1 answer:

Sunny_sXe [5.5K]3 years ago

5 0

Answer: Yes, the mass of the reactants always equal to the mass of the products in a chemical reaction.

Explanation:

In a balanced chemical reaction, the mass of reactants is always equal to the mass of product that is a chemical reaction follows follows 'Law of Conservation of Mass'.

The law states that ' in a chemical reaction mass can neither be created nor be destroyed.

For example: $2H_2+O_2\rightarrow 2H_2O$

Mass of the reactants = Mass of products

$2(2\times 1amu)+1(2\times 16amu)=2(2\times 1amu+16amu)$

36 amu = 36 amu

Yes, the mass of the reactants always equal to the mass of the products in a chemical reaction.

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<u>Answer:</u> The mass of ice is $2.39\times 10^{22}g$

<u>Explanation:</u>

We are given:

Area of Antarctica = $5,500,000mi^2=5,500,000\times 2.59\times 10^{10}=142.45\times 10^{15}cm^2$ (Conversion factor: $1mi^2=2.59\times 10^{10}cm^2$ )

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Height of Antarctica without ice = 1500 ft.

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To calculate mass of ice, we use the equation:

$\text{Density of a substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}$

We are given:

Density of ice = $0.917g/cm^3$

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Putting values in above equation, we get:

$0.917g/cm^3=\frac{\text{Mass of ice}}{26051.26\times 10^{18}cm^3}\\\\\text{Mass of ice}=(0.917g/cm^3\times 26051.26\times 10^{18}cm^3=2.39\times 10^{22}g$

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