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18 Cards in this Set
- Front
- Back
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Exothermic |
An outward expulsion of energy, usually in the form of heat. |
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Endothermic
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Absorbs surrounding energy, usually in the form of heat. |
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Reaction rate |
The speed at which a chemicalreaction proceeds
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Concentration |
How closely condensed something is |
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Catalyst |
A catalyst is a substance that speeds up a chemical reaction |
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Alkali Metals |
Alkali metals are very reactive chemical |
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3 Alkali Metals are |
Lithium, Potassium, Cesium |
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Alkali Metal valence electrons |
1 |
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Alkaline Earth Metals |
Reactive but less than first column. Reacts very well with hydrogen |
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3 examples of alkaline earth metals |
Barium, Magnesium, Calcium |
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Alkaline Earth Metal Valence electrons |
2 |
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Halogens |
Because of their great reactivity, halogen elements are not found in nature. |
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3 Halogens examples |
Fluroine, Chlorine, Iodine |
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HAlogen valence electrons |
7 |
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Noble gases |
Last coloumn of Table. Full valance. Unreactive |
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Noble gases 3 example |
Neon, krypton, helium |
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ionic bonding |
The loosing and gaining of outer electrons between two elements to try acheive the octet rule |
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Covalent bonding |
Two elements that share one or more valence electrons to achieve the octet rule |
