Предмет: Химия, автор: Аноним

Приведены 8 разных химических реакций. Уравняйте реакции, расставив коэффициенты
H2 + O2 = H2O
Zn + CuCl2 = Cu + ZnCl2
NH3 = N2 + H2
Cu + S = CuS
AgF + NaCl = AgCl + NaF
CaCO3 = CaO + CO2 ↑
CuBr2 + NaOH = Cu(OH)2 + NaBr
Fe + H2O = H2↑ + Fe2O3

Ответы

Автор ответа: Galinagru

2H2 и 2H2O
во втором уравнении коэфф не нужны
2NH3 и 3H2
в 4-5 -6 не нужны
2 NaOH и 2NaBr
2Fe+3H2O= Fe2O3+3H2

Автор ответа: dasha8642

2Н+О2=2Н2О
ненадо
2NH3=3N2+3H2
ненадо

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