质量反应的离子方程式书写正确的是_刷题宝

题干

质量反应的离子方程式书写正确的是（）

A：氢氧化镁与稀盐酸反应：H⁺+OH﹣═H₂O

B：氯化钡溶液与硫酸钠溶液反应：Ba²⁺+SO $_{4}^{2 -}$ ═BaSO₄↓

C：FeCl₃溶液中加入Fe粉：Fe³⁺+Fe═2Fe²⁺

D：碳酸钠溶液与足量醋酸反应：Na₂CO₃+2H⁺═2Na⁺+CO₂↑+H₂0

上一题下一题 0.0难度选择题更新时间:2019-12-12 04:57:57

答案(点此获取答案解析）

B

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My parents want to take me to visit Beijing this summer holiday. I want to plan a good trip. So I must learn something about Beijing on the Internet. Beijing is a beautiful city. Autumn is the best season. There are many places of interest in Beijing. We want to visit the Great Wall, the Palace Museum and the Summer Palace. Beijing Duck is very famous all over the world. I hope I could have a try.

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