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Definition
the attractive forces formed between 2 atoms that share a pair of electrons
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| what we look @ to determine the total # of protons in an atom |
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a pure substance which cant be broken down in smaller parts
fundamental chemical substances that are made up of collections of only 1 kind of atom |
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| each atom of the same element w/ a different # of neutrons |
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| a light subatomic particle w/ aneg charge that moves about outside the nucleus in regionsknown as energy levels |
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| the weak attractive forces which exist between water molecules |
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| state of matter with the weakest attractive forces |
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Definition
| type of bonding which involves the gain or loss of electrons |
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| oxidation reduction reaction |
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Definition
| type of reaction invoving the transfer of electrons from one atom to another with it, the energy containe din those electrons |
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Definition
| reaction involving the addition of water to break bonds |
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| unit of measure used to describe the mass of atoms |
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Definition
gives off H.
proton donor
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takes in H
proton exceptor |
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Definition
| two or more of the same atom being combined |
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Definition
| two or more different atoms being joined |
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| anything that has mass and takes up space |
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| science concerned w/ composition structure and properties of matter and the changes it undergoes |
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Term
| laws of conservation of energy |
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Definition
| energy is never create dor destroyed. energgy can be converted from one form to another. total energy remains constant |
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Definition
mechanical: running athelte
nuclear: reactions involving innermost part of matter
electrical: the flow of charged particles
radiant: heat, microwaves, xray and light
chemical: kind of potential energy thats stored in matter and changed from one form to anothre |
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Definition
| heavy subatomic particle w/ a positive charge |
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| heavy subatomic particle w/ no charge |
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| an average of all the isotopes available in their normol mixture |
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| all matter is made up of tiny particles which are in constant motion |
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| deals w/ the comparative coldness or hotness of things |
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solid: consists of molecules w/ strong attractive forces
liquid: molecules that move pass each other more freely
gas: |
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Definition
| forces that combine atoms or ions and hold them together |
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| matter that contains two or more substances that arent in set proportions made up of 2 parts solute and solvent |
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| a solution of solid liqiud or gas in water |
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| solution w/ large amounts of solute |
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| solution w. more solvent than solute |
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| any positively or negatively charged atom or molecule is called an |
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| when compounds are broken or formed new material w/ new propeties are produced |
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Definition
| appear on the left of the equation. the substances that are changed |
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Definition
| what u make/ chemicals on the right of the equation |
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| dehydration synthesis reaction |
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Definition
| chemical reaction in which water is released and a larger more complex molecule is made from smaller less complex parts |
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Term
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Definition
| takes place when the ions of an acid interact w/ ions of a base |
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