Question

-------and ------- react with cold water to give hydrogen.​

Answer 1

Answer:

sodium and potassium react with water to give hydrogen

Answer 2

Answer:

The alkali metals (Li, Na, K, Rb, Cs, and Fr) are the most reactive metals in the periodic table - they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.

Explanation:

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