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describe the difference between pure substance and mixturs
Question | Answer |
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pure substance | a sample of matter with both definite and constant composition with distinct chemical properties. |
compound | is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. |
molecule | an electrically neutral group of two or more atoms held together by chemical bonds. |
chemical formula | is a way of expressing information about the proportions of atoms that constitute a particular chemical compound |
subscript | a number, figure, symbol, or indicator that is smaller than the normal line of type and is set slightly below or above it |
mixture | is a material system made up of two or more different substances which are mixed but are not combined chemically. |