What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)
What information do you get from the following chemical equation:
Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)
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Given chemical equation is a 'single displacement reaction', in which a non-metal is displaced by a metal. Here, non-metal is hydrogen which is evolved as gas. It is displaced by the metal zinc.
Explanation:
Generally, a single displacement reaction follows the below pattern: A + BC ----> B + AC
In the given equation - Zn(s) + 2Hcl(aq)-----> Zncl2(aq) + H2(g),
Zinc (Zn) is a reductant metal that displaces hydrogen (H2) from aqueous solution of Hydrochloric acid (HCl).
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This gives zinc chloride and hydrogen. The word equation is:
Zinc + Hydrochloric acid → Zinc chloride + Hydrogen
Formulae for the products are ZnCl2 and H2
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