OCR GCSE Chemistry A key terms

An instrument calibrated to transfer one fixed volume of liquid accurately.

A container of water used to warm a sample indirectly, rather than placing the sample over a flame.

The distance between successive waves of light; it is often shown in nanometres (nm) on a spectrum.

An acid for which only a proportion of its particles ionise in aqueous solution.

The proportion of reactants converted into the desired product.