Page 37 - Curriculum Visions Dynamic Book

EQUATION: Zinc and sulphuric acid
Zinc + sulphuric acid ➪ zinc sulphate + hydrogen gas Zn(s) + H2SO4(aq) ➪ ZnSO4(s) + H2(g)
Hydrogen gas
EQUATION: Mercury and nitric acid
 Metals below hydrogen in the reactivity series, such as mercury, only react with an acid that is also an oxidising agent. The product is then not hydrogen gas
but water.
Brown nitrogen dioxide gas
Concentrated nitric acid is poured onto mercury
Mercury + concentrated nitric acid ➪ mercury nitrate + water + nitrogen dioxide Hg(s) + 4HNO3(conc) ➪ Hg(NO3)2(aq) + 2H2O(l) + 2NO2(g)
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