vocab words
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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| Molecular mass | a number equal to the sum of the atomic masses of the atoms in a molecule
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| Formula weight | sum of all the atomic masses of all the elements in a composition mass of the compound
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| Avagadro's number | the number of atoms, molecules, ions, electrons, or protons in one mole
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| Mole | the mass in grams of this amount of a substance, numerically equal to the molecular weight of the substance
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| Percent composition | the percent of each element in a composition chemical makeup of the substance based on mass
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| Formula unit | a quantity computed by multiplying the atomic weight of each element in a formula by the number of atoms of that element present in the formula, and then adding all of these products together
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| Molar volume | the volume occupied by one mole of a substance in the form of a solid, liquid, or gas
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| Chemical formula | a representation of a substance using symbols for its constituent elements
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| Equivalency | the state of having equal valencies
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| STP | standard temperature and pressure; used for measuring gas, density, and volume
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| Volume | the quantity of three-dimensional space occupied by a liquid, solid, or gas
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| Mass | the property which reflects the quantity of matter within a sample
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