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Verified answer
Ca(OH)2 + H3PO4 ----> Ca3(PO4)2+H20Ca(OH)2=a
H3PO4=b
Ca3(PO4)2=c
H2O=d
Ca=a=3c
O=2a+4b=8c+d
H=2a+3b=2d
P=b=2c
a=3 c=1
b=2c
b=2.1
b=2
2a+3b=2d
2.3+3.2=2d
6+6=2d
12=2d
12:2=d
6=d
jika disetarakan menjadi
3Ca(OH)2+2H3PO4----->Ca3(PO4)2+6H2O
semoga bermanfaat