Question

since gasses weigh nothing, when they are produced in a reaction they do not have to be accounted for. true false

Explanation:

According to the law of conservation of mass, in a chemical reaction, the total mass of reactants equals the total mass of products. Gases have mass (for example, oxygen gas \(O_2\) has a molar mass of \(32g/mol\)). So, when gases are produced in a reaction, they must be accounted for.

Answer:

False