Пожалуйста срочно Определите тип химической реакции
Mg + 2HCl → MgCl2 + H2
2Fe(OH)3 → Fe2O3 + 3H2O
2Ca + O2 → 2CaO
HCl +NaOH=NaCl + H2O
2HgO → 2Hg + O2 ​
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