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42 votes
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Potassium reacts violently with cold water. It forms an alkaline solution of potassium hydroxide and hydrogen.

potassium + water → potassium hydroxide + hydrogen
(a) In what physical state is hydrogen given off? Choose your answer from the words in the box.
gas liquid solid solution​

User Russtbarnacle
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1 Answer

22 votes
22 votes

Answer: Gas

Step-by-step explanation:

When they mix, hydrogen gas is produced.

User Adriane
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