Question

12. Write balanced molecular equations for the following word equations:
al Calcium
+ oxygen
→ Calcium oxide
b] Calcium
+ water
→ Calcium hydroxide + hydrogen
cl Zinc
+ sulphuric acid
→ Zinc sulphate + hydrogen
d] Lead sulphate + ammonium hydroxide → Ammonium sulphate + lead hydroxide
el Copper hydroxide + nitric acid
→ Copper nitrate + water
f] Lead nitrate + sodium chloride → Sodium nitrate
+ lead chloride​

Answer 1

$\huge\bold\color{red}{\boxed{\boxed{☆Answer☆}}}$

Calcium + oxygen → Calcium oxide

$\color{green}{\boxed{ Ca + O\:_2 = CaO}}$

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Calcium + water → Calcium hydroxide + hydrogen

$\color{green}{\boxed{ Ca+2H \:_2O → Ca(OH)\:_2+H\:_2}}</p><p>$

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Zinc + sulphuric acid → Zinc sulphate + hydrogen

$\color{green}{\boxed{ Zn + H\:_2SO\:_4= ZnSO\:_4 + H\:_2}}$

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Lead sulphate + ammonium hydroxide → Ammonium sulphate + lead hydroxide

$\color{green}{\boxed{ PbSO\:_4 +2NH\:_4OH → Pb(OH)\:_2 +(NH\:_4)\:_2SO\:_4}}</p><p>$

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Copper hydroxide + nitric acid → Copper nitrate + water

$\color{green}{\boxed{ Cu(OH)\:_2 + 2HNO\:_3 → Cu(NO\:_3)\:_2 + 2H\:_2O}}$

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Lead nitrate + sodium chloride → Sodium nitrate + lead chloride

$\color{green} {\boxed{ Pb(NO\:_3)\:_2 + NaCl → Na\:_NO3 +PbCl\:_2}}$

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I hope it will help you....