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2 October, 00:16

What kind of reaction occurs when potassium is placed in water? a. a single-displacement reaction c. a decomposition reaction b. a double-displacement reaction d. electrolysis

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  1. 2 October, 00:29
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    The equation for potassium in water is:

    K (s) + H20 (l) - - > H2 (g) + K20 (aq)

    since a element and a compound are reacting, this is a single replacement reaction - which is a)
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