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IB Stoichiometry 1.1
fundamental concepts
Question | Answer |
---|---|
Mixtures | a substance that consists of a number of different particles, not chemically combined. |
Properties of Mixtures | each component has its own separate physical and chemical properties and therefore making it easy to separate by physical means. |
Pure substances can... | be further subdivided into elements and compounds |
Elements contain..... and..... | only one type of atom and cannot be split up into simpler substances by chemical means |
Atoms are | the smallest particles present in an element |
Compounds are | made up of particles (of the same type) which are made up of different types of atoms chemically bonded together. |
Properties of compounds | are usually totally different from those of its component elements |
Molecules are | a small group of atoms joined together by covalent bonds |