Question
Use the chemical reaction to answer the question.
CaCO3→CO2+CaO
CaCO
3
→
CO
2
+
CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
CaCO
3
) in the chemical reaction shown. What is the total mass of the products?
(1 point)
Responses
10 grams
10 grams
60 grams
60 grams
15 grams
15 grams
30 grams
CaCO3→CO2+CaO
CaCO
3
→
CO
2
+
CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
CaCO
3
) in the chemical reaction shown. What is the total mass of the products?
(1 point)
Responses
10 grams
10 grams
60 grams
60 grams
15 grams
15 grams
30 grams
Answers
GPT-4o mini
In a chemical reaction, the law of conservation of mass states that the total mass of the reactants must equal the total mass of the products.
In this reaction:
\[ \text{CaCO}_3 \rightarrow \text{CO}_2 + \text{CaO} \]
If the scientist starts with 30 grams of calcium carbonate (CaCO3), then the total mass of the products (CO2 and CaO) must also be 30 grams.
Therefore, the answer is:
**30 grams**.
In this reaction:
\[ \text{CaCO}_3 \rightarrow \text{CO}_2 + \text{CaO} \]
If the scientist starts with 30 grams of calcium carbonate (CaCO3), then the total mass of the products (CO2 and CaO) must also be 30 grams.
Therefore, the answer is:
**30 grams**.