a) Sr(OH)2+2 HCl--->SrCl2+2 H2O
Sr2+ +2 OH- +2 H+ +2 Cl- --->Sr2+ +2 Cl- +2 H2O
2 OH- +2 H+ --->2 H2O
b) 3 ZnBr2+2 Na3PO4--->Zn3(PO4)2↓+6 NaBr
3 Zn2+ +6 Br- +6 Na+ +2 PO4 3- --->Zn3(PO4)2↓ +6 Na+ +6 Br-
3 Zn2+ +2 PO4 3- --->Zn3(PO4)2↓
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Verified answer
a) Sr(OH)2+2 HCl--->SrCl2+2 H2O
Sr2+ +2 OH- +2 H+ +2 Cl- --->Sr2+ +2 Cl- +2 H2O
2 OH- +2 H+ --->2 H2O
b) 3 ZnBr2+2 Na3PO4--->Zn3(PO4)2↓+6 NaBr
3 Zn2+ +6 Br- +6 Na+ +2 PO4 3- --->Zn3(PO4)2↓ +6 Na+ +6 Br-
3 Zn2+ +2 PO4 3- --->Zn3(PO4)2↓