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. 10 grams. B. 30 grams. C. 15 grams. D. 60 grams.
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. 10 grams. B. 30 grams. C. 15 grams. D. 60 grams.
Answers
GPT-4o mini
In a chemical reaction, the law of conservation of mass states that mass is neither created nor destroyed. Therefore, the total mass of the products will equal the total mass of the reactants.
In this case, the reactant is calcium carbonate (CaCO3), which the scientist starts with at 30 grams. When heated, it decomposes into carbon dioxide (CO2) and calcium oxide (CaO).
Since the total mass of the products must equal the total mass of the reactants, the total mass of the products will also be 30 grams.
The correct answer is **B. 30 grams.**
In this case, the reactant is calcium carbonate (CaCO3), which the scientist starts with at 30 grams. When heated, it decomposes into carbon dioxide (CO2) and calcium oxide (CaO).
Since the total mass of the products must equal the total mass of the reactants, the total mass of the products will also be 30 grams.
The correct answer is **B. 30 grams.**