有些离子方程式能表示一类反应，有些离子方程式却只能表示一个反应。下列离子方程式中，只能表示一个化学反应的是
①Fe+Cu2＋=Fe2＋+Cu
②Ba2＋+2OH－+2H＋+SO42-=BaSO4↓+2H2O
③Cl2+H2O = H＋+Cl－+HClO
④CO32-+2H＋=CO2↑+H2O
⑤Ag＋+Cl－=AgCl↓
| A．只有③ | B．②③ | C．③⑤ | D．①④ |
相关试题
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| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
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| A．as a result of | B．on top of | C．in front of | D．in need of |
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| A． | other | B． | others | C． | one | D． | ones |
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