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Из реакций выпишите реакции обмена и напишите признаки данных реакций.1. 2Н2 + О2 = 2Н2О
2. Zn(OH)2 = ZnO +H2O 3. NaOH + HCl = NaCl + H2O
4.СаО + СО2 = СаСО3
5.СuО + Н2 = Cu + Н2О
6. MgCO3 = MgO + CO2
7. Mg(OH)2 + 2HCl = MgCl2 + H2O
8. NaOH + HCl = NaCl + H2O
9.Na2CO3 +CaCl2 = CaCO3 v + 2NaCl
10.Na2CO3 + H2SO4 = Na2SO4 + CO2^ + H2O
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