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Write balanced chemical equations for th...

Write balanced chemical equations for the following reactions :
(i) dilute sulphuric acid reacts with aluminium powder.
(ii) dilute hydrochloric acid reacts with sodium carbonate.
(iii) Carbon-dioxide is passed through lime water.

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(i) `2Al+3H_(2)SO_(4) rarr Al_(2)(SO_(4))_(3)+3H_(2)`
(ii) `Na_(2)CO_(3)+2HCl rarr 2NaCl+H_(2)O+CO_(2)`
(iii) `Ca(OH)_(2)+CO_(2)rarrCaCO_(3)+H_(2)O`
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