September 2021 0 6 Report
Знайдіть рівняння де коефіцієнти розставлені вірно. 2 балла
3К2О + 2Н3РО4 = 2К3РО4 +3Н2О
2к2О+ 2Н3РО4 = 4 К3РО4 + 3Н2О
К2О + Н3РО = К3РО4 + Н2О
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