Write word equations and then balanced equations for the reaction taking place when :
(a) dilute sulphuric acid reacts with zinc granules.
(b) dilute hydrochloric acid reacts with magnesium ribbon.
(c) dilute sulphuric acid reacts with aluminium powder.
(d) dilute hydrochloric acid reacts with iron filings.

Explanation

(a) Sulphuric acid + Zinc `to` Zinc sulphate + Hydrogen
`H_(2)SO_(4(aq))+Zn_((s)) to ZnSO_(4(aq))+H_(2(g))`
(b) Hydrochloric acid + Magnesium `to` Magnesium chloride + Hydrogen
`2HCl_((aq)) +Mg(s) to MgCl_(2(aq))+H_(2(aq))`
(c) Sulphuric acid + Aluminium `to` Aluminium sulphate + Hydrogen
`3H_(2)SO_(4(aq))+2Al_((s)) to Al_(2) (SO_(4))_(3(aq))+3H_(2(g))`
(d) Hydrochloric acid + Iron `to` Ferric chloride + Hydrogen
`6HCl_((aq))+2Fe_((s)) to 2FeCl_(3(aq))+3H_(2(g))`