Reacting acids with carbonates
2 marks · EasyWrite the balanced ionic equation for the reaction between carbonate ions and hydrogen ions. State the names of all products.
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\ce{CO3^{2-}(aq) + 2H^{+}(aq) -> CO2(g) + H2O(l)}; carbon dioxide and water
Must show: Ionic equation: CO3^{2-} + 2H^+ -> CO2 + H2O, Products: carbon dioxide and water
Also accept: \ce{CO3^{2-} + 2H^+ -> CO2 + H2O}
Common mistakes: Only writing products, not the equation; Incorrect coefficients
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Marking points
B1 · 1 mark · Correct balanced ionic equation.
B1 · 1 mark · Correctly names both products: carbon dioxide and water.
Worked solution
The balanced ionic equation is:
The products are carbon dioxide and water.