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Definition
| a reaction in which energy is absorbed |
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Definition
| a reaction in which energy is released |
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Definition
| change of a substance from liquid to gas |
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Definition
| highly active metals in group 17 |
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Term
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Definition
| highly active metals in group 1 |
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Definition
| highly active metals in group 2 |
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Term
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Definition
| the ion that makes a solution acidic |
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Term
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Definition
| the ion that makes the solution basic |
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Definition
| An organic compound that changes color in an acidic or basic solution |
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Term
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Definition
| Atom of the same element that have different number of neutrons |
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Term
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Definition
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Term
| Law of Conservation of Energy |
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Definition
| Energy can change form, but cannot be created or destroyed under ordinary conditions |
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Term
| Law of Conservation of Mass |
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Definition
| Matter is neither created or destroyed during a chemical change |
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Term
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Definition
| the total amount of Kenectic and Mechanical Energy in a system |
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Term
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Definition
| ability of metals to be hammered or rolled into thin sheets |
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Term
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Definition
| elements that have properties of metals and nonmetals |
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Term
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Definition
| A material made of elements or compounds stirred together but not chemically combined |
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Term
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Definition
| atomic particle with no charge found in nucleus |
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Term
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Definition
| Elements that are usually gases or brittle solids at room temperature, most do not conduct heat or electricity. They appear on the right of the periodic table |
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Term
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Definition
| Elements that are usually solids at room temperature; most conduct heat and electricity. Most of the elements on the left of the stair step line of the periodic table are metals. |
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Term
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Definition
| positively charged center of an atom that contains protons and neutrons |
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Term
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Definition
| horizontal row on the periodic table |
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Term
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Definition
| Vertical sections on the periodic table, usually classified by the number of electrons in the outer shell |
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Term
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Definition
| Vertical sections on the periodic table, usually classified by the number of electrons in the outer shell |
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Term
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Definition
| The amount of solute is much less than the maximum solvent can hold at that temperature |
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Term
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Definition
| abilitlty of metals to be pulled into wire tubing |
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Term
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Definition
| the change of a substance from gas to liquid |
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Term
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Definition
| mass per unit volume of material |
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Term
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Definition
| a molecule composed of 2 atoms of the same element |
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Term
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Definition
| the negatively charged part of an atom found outside of a nucleus |
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Term
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Definition
| no definite shape or volume |
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Definition
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Term
| LIquid no definite shape, definite volume |
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Definition
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Term
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Definition
| A gas like mixture of charged particles that exists at extremely high temperatures – examples are fluorescent lightning, stars |
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Term
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Definition
| characteristic used to descibe a substance such as flammable |
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Term
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Definition
| when a new substance is created by reactants |
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Term
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Definition
| when you change the size or shape still the orignal substance |
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Term
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Definition
| Any characteristic of a material that you can observe without changing the substance/s that make up the material |
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Term
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Definition
| like h2o the # of atoms in the element |
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Term
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Definition
| # of units of each system like 2Ag |
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Term
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Definition
| metals lose their electrons nonmetals gain electrons |
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Term
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Definition
| 2 nonmetals share their electrons |
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Term
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Definition
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Term
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Definition
| substance in which the elements and their ratio are given |
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Term
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Definition
| a substance chemically combioning 2 or more elements |
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Term
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Definition
| produce hydrogen ions has pH less than 7 |
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Term
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Definition
| produces hydroxide ions pH greater than 7 |
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Term
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Definition
| positively or negatively charged particle |
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Term
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Definition
| # of prtons in the atom's nucleus |
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Term
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Definition
| the force that holds together an atom and a compound |
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Term
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Definition
| the shorthand way 2 write an element |
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Term
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Definition
| Describes an atom whose outer energy level is completely filled with electrons |
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Term
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Definition
| A process that removes impurities from the surface of steel and other metals by dipping them in HCl |
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Term
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Definition
| in a chemical reaction the substance produced |
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Term
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Definition
| the beganing substance of a chemical reaction |
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Term
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Definition
| the positively charged particle found in the nucleus |
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Term
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Definition
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Term
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Definition
| change of substance dirrectly solid to gas |
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