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Which elements reacts most vigorously with water to produce hydrogen gas? a. Li b. K c. P d. Cs

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3 votes

Answer:

k

Step-by-step explanation:

The reaction becomes more vigorous as one moves from top to bottom in Group 1A: lithium sizzles fiercely in water, a small amount of sodium reacts even more vigorously, and even a small amount of potassium metal reacts violently and usually ignites the hydrogen gas; rubidium and cesium explode.

User Efalconer
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5 votes

Step-by-step explanation:

The reaction becomes more vigorous as one moves from top to bottom in Group 1A: lithium sizzles fiercely in water, a small amount of sodium reacts even more vigorously, and even a small amount of potassium metal reacts violently and usually ignites the hydrogen gas; rubidium and cesium explode.

User Korayem
by
8.9k points

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