Which of the following causes a precipitate to form?
a. atoms combining in a solution to form a solid
b. volcanoes erupting and magma cooling
c. lava crystallizing
d. minerals undergoing changes in pressure

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,

Here 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.

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

i think they are all correct

explanation:

they seem good