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Copper carbonate reacts with dilute hydrochloric acid to form copper chloride, water and a gas - OCR Gateway - GCSE Chemistry: Combined Science - Question 4 - 2023 - Paper 9
Question 4
Copper carbonate reacts with dilute hydrochloric acid to form copper chloride, water and a gas. What is the formula of the gas? A C B CO C CO2 D CO3 Your answer... show full transcript
Worked Solution & Example Answer:Copper carbonate reacts with dilute hydrochloric acid to form copper chloride, water and a gas - OCR Gateway - GCSE Chemistry: Combined Science - Question 4 - 2023 - Paper 9
Step 1
What is the formula of the gas?
Answer
The reaction of copper carbonate with dilute hydrochloric acid produces copper chloride, water, and carbon dioxide gas. The chemical equation for this reaction can be represented as:
ightarrow ext{CuCl}_2 + ext{H}_2 ext{O} + ext{CO}_2$$ From this equation, we see that the gas produced is carbon dioxide, which has the formula **COâ‚‚**. Therefore, the correct answer is: **C**