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18 March, 02:43

When barium hydroxide, Ba (OH) 2, mixes with water, the solution turns cold.

What is an indicator of a chemical change in the scenario?

formation of a gas

formation of a precipitate

change in energy

change in color

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Answers (1)
  1. 18 March, 02:48
    0
    Change in energy

    Explanation:

    good luck with primavera g.
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