# Construct word equations and balanced chemical equations  (including states) for the following reactions. Once you have done this, classify each reaction (i.e. is it neutralisation, acid+metal...

1.  Construct word equations and balanced chemical equations

(including states) for the following reactions. Once you have done this, classify each reaction (i.e. is it neutralisation, acid+metal etc?):

1. Calcium + sulfuric acid
2. Hydrochloric acid + aluminium hydroxide
3. Magnesium hydroxide + nitric acid
4. Hydrochloric acid + magnesium hydroxide
5. Copper carbonate + hydrochloric acid

jerichorayel | College Teacher | (Level 2) Senior Educator

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1. Calcium + sulfuric acid -> Calcium sulfate + Hydrogen gas

Ca (s) + H2SO4 (aq) -> CaSO4 (aq)+ H2 (g) (single replacement; acid + metal)

1. Hydrochloric acid + aluminium hydroxide -> Aluminum chloride + water

3HCl (aq) + Al(OH)3 (s) ->AlCl3 (aq) + 3H2O (l) (double replacement)

1. Magnesium hydroxide + nitric acid -> Magnesium nitrate + water

Mg(OH)2 (s) + HNO3 (aq) -> Mg(NO3)2 (aq)+ H2O (l) (neutralization)

1. Hydrochloric acid + magnesium hydroxide -> Magnesium chloride + water

2 HCl (aq) + Mg(OH)2 (s) -> MgCl2 (aq)+ 2H2O (l) (double replacement)

1. Copper(II) carbonate + hydrochloric acid -> Copper(II) chloride + water + Carbon dioxide gas

CuCO3 + 2 HCl -> CuCl2 +H2CO3 (double replacement)

**but H2CO3 further decomposes to H2O + CO2 and therefore the final balanced chemical equation would be:

CuCO3 (s) + 2 HCl (aq) -> CuCl2 (aq) + H2O (l) + CO2 (g) (double replacement then decomposition)

s = solid

l = liquid

g = gas

aq = aqueous

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