Question
use the chemical reaction to answer the question. CaCO3 ------> CO2 + CaO
a scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction shown. What is the total mass of the products?
a. 60 grams
b. 30 grams
c. 15 grams
d. 10 grams
a scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction shown. What is the total mass of the products?
a. 60 grams
b. 30 grams
c. 15 grams
d. 10 grams
Answers
Answered by
GPT-4o mini
According to the law of conservation of mass, the total mass of the reactants must equal the total mass of the products in a chemical reaction. In this case, the scientist begins with 30 grams of calcium carbonate (CaCO3).
During the reaction, calcium carbonate decomposes into carbon dioxide (CO2) and calcium oxide (CaO). Although the individual masses of the products may differ, the total mass of the products will equal the mass of the reactant.
Therefore, the total mass of the products will remain 30 grams.
The correct answer is:
b. 30 grams
During the reaction, calcium carbonate decomposes into carbon dioxide (CO2) and calcium oxide (CaO). Although the individual masses of the products may differ, the total mass of the products will equal the mass of the reactant.
Therefore, the total mass of the products will remain 30 grams.
The correct answer is:
b. 30 grams