下列离子方程式书写正确的是

题干

下列离子方程式书写正确的是（）

A：钠跟水反应：Na+2H₂O=Na⁺+2OH^﹣+H₂↑

B：硫酸铜溶液与氢氧化钡溶液反应：SO₄²^﹣+Ba²⁺═BaSO₄↓

C：碳酸钙与醋酸反应：CaCO₃+2H⁺═Ca²⁺+CO₂↑+H₂O

D：NaOH溶液中通入少量SO₂：2OH^﹣+SO₂═SO₃²^﹣+H₂O

上一题下一题 0.0难度选择题更新时间:2018-06-04 08:41:55

D

1）3：30pm To Mike， Mr. Tyler rang. No football practice today. I'm going to Donna's house to play and be back at 5：00pm. Liz	2）4：00pm To Liz， It's your turn to walk the dog. I have to do my homework after school. Remember to play with Teddy when you get home! Mike
3）6：45pm Has anyone seen my tennis shoes? I'm in my bedroom doing my homework. Mike	4）9：00pm. I saw your shoes this morning. They smelt terrible so I put them outside the back door. Good night， dears! Mum