下列变化属于吸热反应的是①液态水气化②将胆矾加热变为白色粉末③浓硫酸稀释④氯酸钾分解制氧气⑤生石灰与水反应生成熟石灰⑥水煤气反应⑦二氧化碳与赤热的炭反应生成一氧化碳

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下列变化属于吸热反应的是
①液态水气化 ②将胆矾加热变为白色粉末③浓硫酸稀释 ④氯酸钾分解制氧气

⑤生石灰与水反应生成熟石灰 ⑥水煤气反应 ⑦二氧化碳与赤热的炭反应生成一氧化碳

A：①④⑤⑦

B：②③⑥

C：①②④⑦

D：②④⑥⑦

上一题下一题 0.0难度选择题更新时间:2017-12-22 04:34:05

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D

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根据短文内容，判断正确还是错误。

My name is Li Hong. I'm 16 years old. I have a lovely brother. His name is Li Qiang. He was short and thin two years ago. He was 1.58 m. He was 48 kg. He was a primary school student. He often watched TV and played games. He didn't like playing football. Now he is handsome. He is 14 years old. He is a junior high school student. He is 1.65m. He is 56kg. He is tall and fat. He is very strong, too. Sometimes he watches TV in the evening. He doesn't play games. He plays football and rides a bike every day.

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