运算什么呢?是写化学方程式吧?
1.Ba(OH)2+Na2So4 =BaSO4(沉淀)+2NaOH
2.2NaOH+CaCl2 =2NaCl+Ca(OH)2(沉淀)
3.Ca(OH)2+Na2Co3 =CaCO3(沉淀)+2NaOH
4.3KoH+FeCl3 =Fe(OH)3(沉淀)+3KCl
盐:
1.Na2Co3+CaCl2 =CaCO3(沉淀)+2NaCl
2.BaCl2+Na2So4 =BaSO4(沉淀)+2NaCl
3.NaCl+AgNo3 =AgCl(沉淀)+NaNO3
运算什么呢?是写化学方程式吧?
1.Ba(OH)2+Na2So4 =BaSO4(沉淀)+2NaOH
2.2NaOH+CaCl2 =2NaCl+Ca(OH)2(沉淀)
3.Ca(OH)2+Na2Co3 =CaCO3(沉淀)+2NaOH
4.3KoH+FeCl3 =Fe(OH)3(沉淀)+3KCl
盐:
1.Na2Co3+CaCl2 =CaCO3(沉淀)+2NaCl
2.BaCl2+Na2So4 =BaSO4(沉淀)+2NaCl
3.NaCl+AgNo3 =AgCl(沉淀)+NaNO3