Question

The process that changes a solid directly into a gas is called sublimation. A solid that begins with a mass of 450 g will sublime to give off a gas with a mass of _______ g. A. 45 B. 900 C. 450 D. 0

Answer 1

I think it's C. 450g

Answer 2

Option (c) is correct.

mass of gas= 450 grams

we use the law of conservation of mass. According to this law, "mass can neither be created nor destroyed". Thus in a chemical reaction, sum of mass of all the reactants is equal to the sum of mass of all the products. Here the mass of reactant= 450 g

so the mass of product (gas)= 450 g