Express your answer as a chemical equation. Identity all of the phases in your ans – [Free] B96
Express your answer as a chemical equation. Identity all of the phases in your answer.CO2(g) CaSiO3(s) H2O(l)→SiO2(s) Ca(HCO3)2(aq)
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Chemistry Question and Answer
Question:
Write a balanced chemical equation for the reaction:
CO₂(g) + CaSiO₃(s) + H₂O(l) → SiO₂(s) + Ca(HCO₃)₂(aq)
Include all phases in your answer.
Step 1: Identify the formulas and phases of each compound:
- Carbon dioxide: CO₂(g)
- Calcium silicate: CaSiO₃(s)
- Water: H₂O(l)
- Silicon dioxide: SiO₂(s)
- Calcium bicarbonate: Ca(HCO₃)₂(aq)
Step 2: Write the balanced chemical equation:
CaSiO₃(s) + 2 CO₂(g) + H₂O(l) → Ca(HCO₃)₂(aq) + SiO₂(s)
Step 3: Verify the balance for each element:
- Calcium (Ca): 1 on both sides
- Silicon (Si): 1 on both sides
- Carbon (C): 2 in CO₂ (left) = 2 in HCO₃ (right)
- Hydrogen (H): 2 in H₂O = 2 in 2 HCO₃
- Oxygen (O): 3 (from CaSiO₃) + 4 (from 2 CO₂) + 1 (from H₂O) = 8
On the right: 6 (from 2 HCO₃) + 2 (from SiO₂) = 8
Conclusion: All atoms are balanced. This equation represents the weathering of calcium silicate by carbon dioxide and water, resulting in the formation of soluble calcium bicarbonate and solid silicon dioxide.
Final Balanced Chemical Equation:
CaSiO₃(s) + 2 CO₂(g) + H₂O(l) → Ca(HCO₃)₂(aq) + SiO₂(s)