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Elements Compounds +
Particle theory
Question | Answer |
---|---|
What is an element | An element is a substance that cannot be broken up into simpler substances |
What is a molecule | A molecule consists of 2 or more atoms joined together chemically |
What is a compound | A compound is a substance that is made up of 2 or more different elements combined together chemically |
What is a mixture | A mixture consists of 2 or more different substances mingled with each other but not chemically combined |
Name 4 differences between a compounds and mixtures | {Use notes} |
Why can't compounds be easily separated | They have gone through a chemical change (usually caused by heat) |