Solutions & MixturesATI TEAS 7 cheat sheet

What dissolves in what

10 key facts 2 practice questions Reviewed Oct 2026

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Definitions

Solute dissolves INTO the solvent
Water is the universal solvent
A solution is a homogeneous mixture

Mixture Types

Homogeneous — uniform throughout (saltwater)
Heterogeneous — visibly different parts (sand in water)
Mixtures can be separated physically; compounds cannot

Solubility

Like dissolves like — polar with polar, nonpolar with nonpolar
Heat and stirring raise the rate of dissolving
Gas solubility falls as temperature rises

Concentration

Dilute vs concentrated; saturated holds all it can at that temperature

Key takeaway

What dissolves in what

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Question 1 of 2

Which of the following is a pure substance?

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