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secondary 3 | A Maths
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kim Yeon Jae
Kim Yeon Jae

secondary 3 chevron_right A Maths

Please help me with this qn

Date Posted: 6 years ago
Views: 3158

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Christmas MT
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2908 answers (A Helpful Person)
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Arnold K H Tan
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2108 answers (A Helpful Person)
Carbon dioxide dissolves to form the weak acid hydrogen carbonate, which reacts with limewater to form a white ppt, CaCO3 (s). Concise answer: carbon dioxide forms the white precipitate of calcium carbonate. Excess carbon dioxide dissolves in water and reacts with CaCO3 to form soluble calcium bicarbonate (or calcium hydrogencarbonate).
Arnold K H Tan
Arnold K H Tan
6 years ago
*minor correction: carbon dioxide reacts with limewater to form the white precipitate, CaCO3.