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Write word equations and then balanced equations for the reaction taking place when
Answer :
(a) $$Zinc + dilute sulphuric acid \rightarrow Zinc sulphate + Hydrogen $$
$$ Zn(s) + H_{2}SO_{4}(aq) $$
$$ \downarrow$$
$$ ZnSO_{4}(aq) + H_{2}(g) $$
(b) $$Magnesium ribbon + dil. Hydrochloric acid \rightarrow Magnesium chloride + Hydrogen $$$$ Mg(s) + 2HCl(aq) $$
$$ \downarrow$$
$$ MgCl_{2} + H_{2}(g) $$
(c) $$Aluminium powder + dil. Sulphuric acid \rightarrow Aluminium sulphate + Hydrogen $$$$ 2Al(s) + 3H_{2}SO_{4}(aq) $$
$$ \downarrow$$
$$Al_{2}(SO_{4})_{3} (aq) + 3H_{2}(g) $$
(d) $$Iron filings + Dilute hydrochloric acid \rightarrow Ferric chloride + Hydrogen$$$$ 2Fe(s) + 6HCl(aq) $$
$$ \downarrow$$
$$2FeCl_{3}(aq) + 3H_{2}(g)$$