Use the chemical reaction to answer the question.

CaCO↓(3) -> CO↓(2) + CaO

A scientist heats 30 grams of calcium carbonate (CaCO↓(3) ) in the chemical reaction shown. What is the total mass of the products?

60 grams
15 grams
10 grams
30 grams

1 answer

60 grams

This can be calculated by adding the molar masses of the products: CO2 (44 grams/mol) and CaO (56 grams/mol).
44 grams/mol (CO2) + 56 grams/mol (CaO) = 100 grams
Since the reaction produces equal amounts of CO2 and CaO, the total mass of the products will be 100 grams.