Сa(OH)2 + CO2 = CaCO3 + H2O
CuCl2 + 2KOH = Cu(OH)2 + 2KCl
Cu(+2) + 2Cl(-) + 2K(+) + 2OH(-) = Cu(OH)2 + 2K(+) + 2Cl(-)
Cu(+2) + 2OH(-) = Cu(OH)2
NH4OH + HBr = NH4Br + H2O
NH4(+) + OH(-) + H(+) + Br(-) = NH4(+) + Br(-) + H2O
H(+) + OH(-) = H2O
Na2S +2 HCl = 2NaCl + H2S
2Na(+) + S(-2) + 2H(+) + 2Cl(-) = 2Na(+) + 2Cl(-) + H2S
2H(+) + S(-2) = H2S
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Answers & Comments
Сa(OH)2 + CO2 = CaCO3 + H2O
CuCl2 + 2KOH = Cu(OH)2 + 2KCl
Cu(+2) + 2Cl(-) + 2K(+) + 2OH(-) = Cu(OH)2 + 2K(+) + 2Cl(-)
Cu(+2) + 2OH(-) = Cu(OH)2
NH4OH + HBr = NH4Br + H2O
NH4(+) + OH(-) + H(+) + Br(-) = NH4(+) + Br(-) + H2O
H(+) + OH(-) = H2O
Na2S +2 HCl = 2NaCl + H2S
2Na(+) + S(-2) + 2H(+) + 2Cl(-) = 2Na(+) + 2Cl(-) + H2S
2H(+) + S(-2) = H2S