rieflerchemistryCh3
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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| law of conservation of mass | states that mass is neither created nor destroyed during chemical reactions or physical changes
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| law of definite proportions | the fact that a chemical compound contains the same elements in exactly the same proportions by the mass regardless of the size of the sample or source of the compound
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| law of multiple proportions | if two or more different compounds are composed of the same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ratio of the small whole numbers
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| atom | the smallest particles of an element that retains the chemical properties of that element
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| atomic number | the number of protons
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| isotopes | atoms of the same element that have the different mass
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| mass number | total number of protons and neutrons
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| nuclide | a general term for specific isotope of an element
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| average atomic mass | the weighted average of the atomic masses of the naturally occurring isotopes of an element
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| mole | amount of a substance that contains as many particles as there are atoms
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| avogardro's number | 6.02 * 10^23
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| molar mass | mass of one mole of a pure substance
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Created by:
carleyR
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