.............
w=5/35=0.143 14.3%
Ответ:
CuSO4+2NaOH-->Cu(OH)2+Na2SO4
Cu(OH)2-->CuO+H2O
CuO+2HCL-->CuCL2+H2O
Объяснение:
Ca + S = CaS
MgCO3 + 2HCl = MgCl2 + H2CO3
Ca + 2H2O = Ca(OH)2 + H2
4Li + O2 = 2Li2O
NH₂-CH₂-COOH + KOH = NH₂-CH₂-COOK + H₂O
NH₂-CH₂-COOH + CH₃OH = NH₂-CH₂-CO-O-CH₃ + H₂O
СH₃-CH-COOH+ HCl = [CH₃-CH -COOH]⁺Cl⁻
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NH₂ NH₃