ChemChapter3
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 | Mass is neither created nor destroyed during ordinary chemical reactions or physical changes
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| Law of definite proportions | A chemical compound contains the same elements in exactly the same proportions by 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 small whole numbers
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| Atom | The smallest particle of an element that retains the chemical properties of that element
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| Nuclear Forces | The interaction that binds protons and neutrons, protons and protons, and neutrons and neutrons together in a nucleus
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| Atomic Number | The number of protons of each atom of that element
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| Isotopes | Atoms of the same element that have different masses
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| Nuclide | A general term for a specific isotope of an element
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| Atomic Mass Unit | 1 amu
Exactly 1/12 the mass of a carbon-12 atom
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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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| Avogadro's Number | 6.02 * 10^23
The number of particles in exactly 1 mol of a pure substance
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| Molar Mass | The mass of one mole of pure substance
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Created by:
GriffisBen
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