Separation Techniques

A mixture is made up of lots of substances that are chemically joined together.

In a mixture, the substances [blank_start]are not[blank_end] chemically joined together, it [blank_start]is[blank_end] easy to separate, you [blank_start]can[blank_end] change the amounts of each substance and the substances in a mixture [blank_start]keep[blank_end] their own properties. In a compound, the substances [blank_start]are[blank_end] chemically joined together, it [blank_start]is not[blank_end] easy to separate, you [blank_start]cannot[blank_end] change the amounts of each substance and the substances in a mixture [blank_start]do not keep[blank_end] their own properties.

How can you tell whether a substance is pure or impure?

A solution is a mixture of a liquid with a solid or a gas. The liquid is called is called the solvent. The solid or gas is called the solute.

In a coffee solution, the coffee beans dissolve into water. This makes the coffee beans the [blank_start]solute[blank_end] and the water the [blank_start]solvent[blank_end].

Which of these is particles in a solid, which is particles in a liquid, and which is particles in a solution?

When you dissolve sugar in water, eventually the water cannot dissolve any more sugar. At that point, the water is a [blank_start]saturated solution[blank_end].

If in 100g of water at 20 degrees Celsius, the solubility of sugar was 202 and the solubility of salt was 36, then the [blank_start]sugar[blank_end] is more soluble than the [blank_start]salt[blank_end] in 100g of water at 20 degrees Celsius.