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21 Cards in this Set
- Front
- Back
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Binary compound |
A compound that consists of two elements |
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Dipole atrractions |
The attraction of the δ- end of one polar molecule to the δ + end ofanother polar molecule. |
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Dipole moment |
An arrow along the line of symmetry in a polar molecule that shows the net direction that electrons are being pulled towards the partially negative end of the molecule. |
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Electronegativity difference |
The difference in electronegativity between two elements in a bond. |
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Electrical conductivity (metals) |
The ability of the substance to allow electrons to pass from atom to atom through itself from a source or electricity to an electrical ground. |
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Electrolyte |
A solution containing dissolved ions that can conduct electricity through it. |
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Empirical formula
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The simplest whole-number mole ratio of elements in a compound, usedto write the formulas of ionic compounds.
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Formula mass
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The sum of the atomic masses of an element or compound, measured ingrams/mole. Reported to the nearest tenth of a gram per mole.
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Hydrogen bonds
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The strong attraction of the H (δ+) end of one polar molecule to the N, Oor F (δ−) end of another polar molecule. The two ends form temporarycovalent bonds.
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Intermolecular AttractiveForce
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The forces that hold molecules together in the solid and liquid phase.These are the forces that must be overcome to melt or boil a substance.Also called “van der Waal’s forces”.
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Ionic compound
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Compounds consisting of a metal and a nonmetal that are ionicallybonded in a whole-number ratio
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London dispersion force
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The weak attractive force caused by temporary dipoles in nonpolarmolecules.
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Metallic bond
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A bond formed between metal atoms as they collectively share theirconducting electrons evenly between metal kernals.
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Molecular formula
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The actual number of nonmetal atoms in a molecule, a whole-numbermultiple of the empirical formula.
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Molecule
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A particle made of nonmetal atoms covalently bonded together to form adistinct particle.
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Network solid
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A crystal lattice formed from covalently bonded nonmetal atoms with nodistinct molecules.
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Nonpolar molecule
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A molecule with symmetrical electron distribution resulting in any polarbonds canceling each other out to yield no partially charged ends.
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Percent composition
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The formula mass of an element divided by the formula mass of thecompound that contains the element multiplied by 100.
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Polar molecule
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A molecule with asymmetrical electron distribution resulting in partiallycharged ends.
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Polyatomic Ion
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An ion formed by atoms bonding together in such a way that a net chargeis formed.
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Ternary compound
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A compound that consists of three or more elements, usually containing apolyatomic ion.
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