10.01.7 KEYWORDS

· Limewater – Calcium Hydroxide solution, used to test for CO₂

· Litmus Paper – Blue-White indicator paper used in Chlorine test

· Instrumental Method – test that uses machine to measure rather than people

· Accurate – gives a correct answer precisely and reliably

· Sensitive – can measure very small quantities

· Flame Emission Spectroscopy – process that measures the frequency of the colours given out by a substance when it is burned.

· Spectroscope – part of the flame emission spectrometer that splits up all the frequencies of light given out so that they can be measured.

· Line Spectrum – display of the frequencies given out during Flame Emission Spectroscopy

· Lilac – Purple

· Crimson – Red

· Brick-Red – Orange

· Precipitate – solid that forms in a solution during a test