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12 Cards in this Set
- Front
- Back
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Chemical bond
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is the combining of atoms to form molecules or bonds
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compound
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a substance made up of atoms of 2 or more different elements joined by chemical bonds
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molecule
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2 or more atoms joined in a difinate ratio
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ionic compound
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contains ionic bonds ( an attraction between opposite charged ions - and +
- have strong attractive force |
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How is an ion created?
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If the # of electrons and protons are not equal, the atom becomes an ion
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Properties of Ionic Compounds
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-solid at room temperature-
- breaks apart when hit -high melting point because of strong bonds -soluable- dissolves easily |
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Covalent Compound are formed when
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a group of atoms share electrons
they have a weak attractive force |
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Properties of Covalent Compounds
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-Low soluability- doesnt dissolve well in water
-low melting point because of weak bonds -- does not conduct electricity |
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acid
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compound that increases the number of hydronium ions when dissolved in water
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Properties of Acids
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-sour taste
-poisonous -conducts electricity -turns litmus red -corrosive |
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Bases
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are any compounds that increases the number of hydroxide ions when dissolved in water
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Properties of Bases
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-bitter taste
-slippery -corrosive -conducts electricity -turns litmus blue |
