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氧气和二氧化碳

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科学 第五章

Question 1 of 4

2

Fill the blank spaces to complete the text.

油脂酸败是指后,发出和刺激性的气味,属于过程

Explanation

Question 2 of 4

2

Fill the blank spaces to complete the text.

高锰酸钾加热后会生成++,属于

Explanation

Question 3 of 4

2

氯酸钾加热后生成

Select one of the following:

  • 氯化钾和氧气

  • 氯化钙和氧气

  • 二氧化锰和氧气

Explanation

Question 4 of 4

2

碳酸钙加盐酸生成氯化钙+二氧化碳+水

Select one of the following:

  • True
  • False

Explanation