Определите соответствие.
Сумма коэффициентов сокращенного
ионного уравнения
1) 3
2) 4
3) 5
Реакции

a) NaOH+CuSO4 → b) K2SO4+BaCl2 →
c) Al(NO3)3+NaOH → d) Na2S+CuCl2 →
e) NaOH+H2SO4 →
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