Newcastle High School, Newcastle SCIENC 101 MERCURY An example of a element that is a gas SODIUM, POTASSIUM AND LITHIUM Three halogens NEON, ARGON AND KRYPTON The three signs of a chemical reaction Hydrogen oxide Types of energy that chemical energy is often changed into GASS GIVEN OFF, COLOUR CHANGE GOES CLOUDY SULPHUR, OXYGEN AND BROMINE IRON SUL ...[Show More]
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