Ответы на вопрос:
1.ca(oh)2+2hcl=cacl2+2h2o 2.koh+ hcl= kcl+ h2o 3.cu(oh)2+ h2so4= cuso4+ 2h2o 4.na2so4+cu(no3)2=cuso4+2nano3 5.h2so4+al= h2+ al2(so4)3 6.2h3po4+3ca= ca3(po4)2+3h2 7.p2o5+3h2o = 2h3po4 8.2h2o=2h2+ 2o 9.na+cl=nacl 10.nano3 = (t) 2 nano2 + o2
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