1) 3CaCl2 + 2H3PO4---->Ca3(PO4)2 + 6HCl3mole CaCl2---------1mol Ca3(PO4)22mole CaCl2-----------xmoli Ca3(PO4)2x = 0,67mola Ca3(PO4)22) 3Mg + 2H3PO4---->Mg3(PO)4 + 3H22mole H3PO4-------1mol Mg3(PO)4xmoli H3PO4--------5moli Mg3(PO)4x = 10moli H3PO43) Zn + 2HCl ---->ZnCl2 + H21mol Zn--------1mol H23mole Zn--------xmoli H2x = 3mole H2
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1) 3CaCl2 + 2H3PO4---->Ca3(PO4)2 + 6HCl
3mole CaCl2---------1mol Ca3(PO4)2
2mole CaCl2-----------xmoli Ca3(PO4)2
x = 0,67mola Ca3(PO4)2
2) 3Mg + 2H3PO4---->Mg3(PO)4 + 3H2
2mole H3PO4-------1mol Mg3(PO)4
xmoli H3PO4--------5moli Mg3(PO)4
x = 10moli H3PO4
3) Zn + 2HCl ---->ZnCl2 + H2
1mol Zn--------1mol H2
3mole Zn--------xmoli H2
x = 3mole H2