In which situation can a mixture always be called a solution?

when one of its components is a gas

when there is no solvent in the mixture

when its components are made up of different types of particles

when the mixture is homogeneous

when the mixture is homogeneous

Explanation:

A homogeneous mixture has a uniform composition whereas a heterogeneous mixture does not. A homogeneous mixture exists in a single phase whereas a heterogeneous mixture has more than one phase. For example, salt and water or salt solution is a homogeneous mixture but gravel and water is a heterogeneous mixture. Thus a homogeneous mixture is called a true solution.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

the correct answer is:

a. formation of precipitation