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Which of the following causes a precipitate to form?

AAtoms combining in a solution to form a solid
BVolcanoes erupting and magma cooling
CLava crystallizing
DMinerals undergoing changes in pressure

Verified Answer :

Greenleafable

The correct answer is A. Atoms combining in a solution to form a solid

What this means is that atoms bond together to form a physical presence to appear and becomes deposited in a solution in solid form.

Answer: Option (A) is the correct answer.

Explanation:

When in a chemical reaction, a liquid solution results in the formation of an insoluble solid then this solid is known as a precipitate.

For example, \(Pb(NO_{3})_{2}(aq) + 2NaI(aq) \rightarrow PbI_{2}(s) + 2NaNO_{3}(aq)\)

Here \(PbI_{2}\) solid formed is a precipitate as it remains insoluble in the reacting solution.

Hence, we can conclude that out of the given options atoms combining in a solution to form a solid causes a precipitate to form.

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