Помогите пожалуйсто!!!
До пишите продукты реакций. Розставь коефициенты:
1)AlCl3+NaOH=
Al(OH)3+KOH=
Al(OH)3+H2SO4=
HCl+Ca(OH)2=

2) Zn(OH)2+LiOH=
Zn(OH)2+HNO3=
HNO3+Ba(OH)2=
ZnO+KOH=

3) Cr2O3+HCl=
Cr(OH)3+KOH=
Cr(OH)2+H2SO4=
Cu(OH)2+HNO3=

4) BeO+KOH=
Be(OH)2+NaOH=
Be(OH)2+H3PO4=
Cr(OH)2+HCl=
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