IB Chemistry Key words from Y1

Front

Element

Back

Pure substance made of one type of atom that cannot be chemically broken down further.

Front

Compound

Back

Substance formed when atoms of different elements are chemically bonded in fixed ratios.

Front

Mixture

Back

Combination of two or more substances not chemically bonded and in no fixed ratio.

Front

Homogeneous mixture

Back

A mixture with a uniform composition throughout (e.g., salt water).

Front

Heterogeneous mixture

Back

A mixture where components are visibly different (e.g., sand in water).

Front

Filtration

Back

Separation method that removes solid particles from a liquid.

Front

Distillation

Back

Process that separates substances based on boiling point differences.

Front

Chromatography

Back

Technique for separating mixtures based on differences in solubility or adsorption.

Front

Recrystallization

Back

Method of purifying solids by dissolving and reforming crystals.

Front

Evaporation

Back

Removing a liquid by heating so only the solid solute remains.