火力发电厂的燃料主要是煤，煤燃烧排放的SO2、NO2等污染物不仅污染空气，还会形成酸雨．邵阳市某发电厂处理NO2的反应原理为CH4+2NO2=CO2+X+2H2O，则X的化学式是_刷题宝

题干

火力发电厂的燃料主要是煤，煤燃烧排放的SO₂、NO₂等污染物不仅污染空气，还会形成酸雨．邵阳市某发电厂处理NO₂的反应原理为CH₄+2NO₂=CO₂+X+2H₂O，则X的化学式是（　　）

A：C

B：N₂

C：CO

D：O₂

上一题下一题 0.0难度选择题更新时间:2018-07-16 02:05:55

答案(点此获取答案解析）

B

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Here are some tips about how to keep healthy.

1) Healthy food is important. If you want to keep healthy, eat lots of fruit and vegetables. Don't eat much meat.

2) Water is important. Drink water every day. Milk is good for you, too. Don't drink sweet drinks.

3) Exercise is important. You can ride your bike or play soccer. Going swimming is a good idea.

4) Clean air is important. If you are free, you can go to the park and enjoy clean air.

5) Your teeth are important. You should brush your teeth twice a day.

6) Sleep is important, too. Go to bed early. Don't stay up late, or you will feel sleepy.

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