At room temperature, they do not interact with water a) magnesium b) calcium c) strontium d) barium

At room temperature, alkali and alkaline earth metals, such as calcium, react well with water:

Ca + 2H2O = Ca (OH) 2 + H2.

Magnesium at room temperature is covered with a protective oxide film and practically does not react with water. For the reaction to pass, the metal must be heated.



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