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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
When copper carbonate reacts with dilute hydrochloric acid, one of the products formed is carbon dioxide gas. The reaction can be represented as:
ightarrow ext{CuCl}_2 + ext{H}_2 ext{O} + ext{CO}_2 $$ Thus, the correct formula for the gas produced in this reaction is $CO_2$. Therefore, the answer is option **C**.