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14 July, 05:37

Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas?

a. K

b. Sn

c. Ni

d. Mn

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Answers (1)
  1. 14 July, 09:34
    0
    The answer would be: K

    Kalium or Potassium is one of the metal that located in the first column of the periodic table. It was a strong base with one valence. If react with water it would have an equation:

    2K + 2H2O = 2KOH + H2

    The kalium hydroxide will form ion if put on the aqueous state. It will become K + and OH-, thus increasing the water pH.
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