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chemical reactions
chemical reaction v physical change
Question | Answer |
---|---|
Type of reaction that do NOT involve a new substance being formed. | physical change |
Type of reaction that ALWAYS involve a new substance being formed. | chemical change |
Type of reaction that involves a change of state | physical change |
change of state from solid to liquid | melting |
change of state from gas to liquid | condensation |
change of state from liquid to gas | evaporation |
change of state from liquid to solid | freezing |
Type of reaction that involves a colour change | chemical change |
Type of reaction that involves the formation of a gas | chemical change |
Type of reaction that involves a temperature change | chemical change |
Type of reaction that involves the formation of a precipitate | chemical change |
Type of reaction which is easy to reverse | physical change |
Type of reaction which is NOT easy to reverse | chemical change |
Burning toast is an example of what type of reaction | chemical change |
Ice melting is an example of what type of reaction | physical change |