鹼金屬(如 Na、K)與水反應時,會產生何種氣體?

Answer and explanation

Correct answer: A. 氫氣

  1. Step 1: 鹼金屬置換水中的氫,生成氫氧化物與氫氣,反應激烈。
Answer
氫氣.
Why not the others: 氧氣、二氧化碳、氯氣不符合題意。

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