Уровните пожалуиста примеры по химии. Завтра урок, а я не успеваю.
1)H2+O2>H2O;
2)Al+HCl>AlCl3+H2;
3)Cr(OH)2+H2SO4 > Cr(SO4)3+H2(OH);
4)CaCO3>CaO+CO2;
5)CuSO4+HNO3>H2SO4+Cu(NO3)2;
6)Fe(OH)3>FeO + H2O;
7)N2+H2>NH3;
8)Zn+HCl>ZnCl2+H2;
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