October 2021 0 4 Report
Определите массу KCl, образующейся в результате химической реакции взаимодействия 276 граммов карбоната калия К2СО3 с солянной кислотой: К2СО3+2НСl=2КСl+Н2СО3                         А)74,5г В) 149г С)298г Д)740г Е) 148г 
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