Ответ №1
1.CaCl2+2NaBr=CaBr2+2NaCl
Ca2++2Cl-+2Na++2Br-=CaBr2+2Na++2Cl-
Ca2++2Br-=CaBr2
Ba(OH)2+Na2SO4=BaSO4+2NaOH
Ba2++2OH-+2Na++SO42-=BaSO4+2Na++2OH-
Ba2++SO42-=BaSO4
Ответ №1
1.CaCl2+2NaBr=CaBr2+2NaCl
Ca2++2Cl-+2Na++2Br-=CaBr2+2Na++2Cl-
Ca2++2Br-=CaBr2
Ba(OH)2+Na2SO4=BaSO4+2NaOH
Ba2++2OH-+2Na++SO42-=BaSO4+2Na++2OH-
Ba2++SO42-=BaSO4
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