fundamental concepts
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Mixtures | a substance that consists of a number of different particles, not chemically combined.
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| Properties of Mixtures | each component has its own separate physical and chemical properties and therefore making it easy to separate by physical means.
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| Pure substances can... | be further subdivided into elements and compounds
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| Elements contain..... and..... | only one type of atom and cannot be split up into simpler substances by chemical means
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| Atoms are | the smallest particles present in an element
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| Compounds are | made up of particles (of the same type) which are made up of different types of atoms chemically bonded together.
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| Properties of compounds | are usually totally different from those of its component elements
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| Molecules are | a small group of atoms joined together by covalent bonds
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