Question

*Calcium carbonate decomposes when heated. Which of the following equation is accurate for this reaction?*

1️⃣ CaCO₃ → CaO + CO₂↑
2️⃣ CaCO₃ → CaO + CO₂
3️⃣ CaCO₃(s) → CaO(s) +CO₂↑
4️⃣ CaCO₃(s) + Heat→ CaO(s)+CO₂↑(g)​

Answer 1

Answer:

3️⃣ CaCO₃(s) → CaO(s) +CO₂↑

Answer 2

3️⃣ CaCO₃(s) → CaO(s) +CO₂↑