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An online crossword puzzle with 20 words. Play it free at AgileCrosswords.com.

Clues

To break a compound down using heat-high temperature (7,13)
General description for the formation of a substance that doesn't dissolve (11)
The acid that is used to make phosphate salts (10)
This compound makes fruit taste bitter - particularly citrus fruits! (6,4)
A descriptor for substances that easily catch fire! (9)
The addition of water to a compound (9)
Mainly carbon, common fossil fuel (4)
This gas turns limewater cloudy (white precipitate) (3)
The sort of natural material from which you can extract a metal (3)
Sugars are an example (12)
Vinegar is a solution of this chemical (8,4)
Spread on fields to make the soil more fertile (11)
The kind of compound made from reacting an acid and a base that dissolves in water (7,4)
The burning of a substance (9)
When an atom or compound gains oxygen (9)
It produces a spectacularly visual exothermic reaction! (8)
Not man-made! (7)
Add these to a molecule and you get oxidation (7)
Formula of compound left after heating lead carbonate (3)
Formula for hydrochloric acid(3)