вставьте в уравнение реакций формулы необходимых веществ и расставьте коэффициенты:
1)__HCl+__........ =__MgCl2+__H2↑
2) __....... +__........ =__ZnSo4+__H2↑
3)__H3PO4+__...... =__AlPO4+__H2↑
4)__.......+__Mg=__MgCo3+__.......​
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