Са(ОН)+...→Са3(РО4)2

Р+..→Р2О5

Р2О5+...→Н3РО4

Н3РО4+ ..→Са3(РО4)2

Са+...→Са3Р2

Р2О5+...→Са3(РО4)2 ПОМОГИТЕЕЕ!!(((

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