zad.1
Zn + 2HCl ---- ZnCl2 + H2
Zn + 2H+ + 2Cl- ----- Zn 2+ + 2Cl- + H2
Zn + 2H+ ---- Zn 2+ + H2
zad.2
2Al + 3H2SO4 ---- Al2(SO4)3 + 3H2
2Al + 6H+ + 3SO4 2- ----- 2Al 3+ + 3SO4 2- + 3H2
2Al + 6H+ ---- 2Al 3+ + 3H2
Zn+2HCl-->ZnCl2+H2
Zn + 2H(+) + 2Cl(-) -->Zn(2+) + 2Cl(-) + H2
Zn + 2H(+) -->Zn(2+) + H2
2Al+3H2SO4-->Al2(SO4)3+3H2
2Al + 6H(+) + 3SO4(2-) -->2Al(3+) + 3SO4(2-) + 3H2
2Al + 6H(+) -->2Al(3+) + 3H2
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zad.1
Zn + 2HCl ---- ZnCl2 + H2
Zn + 2H+ + 2Cl- ----- Zn 2+ + 2Cl- + H2
Zn + 2H+ ---- Zn 2+ + H2
zad.2
2Al + 3H2SO4 ---- Al2(SO4)3 + 3H2
2Al + 6H+ + 3SO4 2- ----- 2Al 3+ + 3SO4 2- + 3H2
2Al + 6H+ ---- 2Al 3+ + 3H2
zad.1
Zn+2HCl-->ZnCl2+H2
Zn + 2H(+) + 2Cl(-) -->Zn(2+) + 2Cl(-) + H2
Zn + 2H(+) -->Zn(2+) + H2
zad.2
2Al+3H2SO4-->Al2(SO4)3+3H2
2Al + 6H(+) + 3SO4(2-) -->2Al(3+) + 3SO4(2-) + 3H2
2Al + 6H(+) -->2Al(3+) + 3H2