Reacting acids with carbonates
2 marks · EasyA student adds sodium carbonate to an excess of dilute sulfuric acid in a beaker.
Name all products formed in this reaction.
State the gas produced.
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(a) sodium sulfate, carbon dioxide, water · must show All correct products
(b) carbon dioxide · must show Correct gas
Common mistakes: Omitting water as a product; Incorrectly naming carbon monoxide instead of carbon dioxide
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Marking points
B1 (a) · 1 mark · Lists all three products: sodium sulfate, carbon dioxide, water.
B1 (b) · 1 mark · Identifies the gas produced: carbon dioxide.
Worked solution
a) The products are sodium sulfate (the salt), carbon dioxide, and water.
b) The gas produced is carbon dioxide.