Term
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Definition
| The energy needed upon collision to break apart the bonds of the reacting molecules |
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Term
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Definition
| The number of items in a mole, equal to 6.02 x 1023 |
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Term
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Definition
| The final form of a chemical equation that shows the same number of atoms of each element in the reactants and products |
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Term
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Definition
| A substance that increases the rate of reaction by lowering the activation energy |
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Term
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Definition
| The formation of a new substance with a different composition and different properties than the initial substance |
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Term
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Definition
| A shorthand way to represent a chemical reaction using chemical formulas to indicate the reactants and products and coefficients to show reacting ratios |
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Term
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Definition
| The process by which a chemical change takes place |
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Term
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Definition
| Whole numbers placed in front of the formulas to balance the number of atoms or moles of atoms of each element on both sides of an equation |
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Term
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Definition
| A reaction in which reactants combine to form a single product |
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Term
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Definition
| A reaction in which a single reactant splits into two or more simpler substances |
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Term
| Double replacement reaction |
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Definition
| A reaction in which parts of two different reactants exchange places |
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Term
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Definition
| A reaction that requires heat; the energy of the products is higher than the energy of the reactants |
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Term
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Definition
| A reaction that releases heat; the energy of the products is lower than the energy of the reactants |
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Term
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Definition
| The group of ions represented by the formula of an ionic compound |
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Term
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Definition
| The mass in grams of 1 mole of an element equal numerically to its atomic mass. The molar mass of a compound is equal to the sum of the masses of the elements multiplied by their subscripts in the formula |
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Term
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Definition
| A group of atoms, molecules, or formula units that contains 6.02 x 1023 of these items |
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Term
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Definition
| A conversion factor that relates the number of moles of two compounds derived from the coefficients in an equation |
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Term
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Definition
| The loss of electrons by a substance |
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Term
| Oxidation-reduction reaction |
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Definition
| A reaction in which the oxidation of one reactant is always accompanied by the reduction of another reactant |
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Term
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Definition
| A change in which the physical appearance of a substance changes but the chemical composition stays the same |
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Term
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Definition
| The substance formed as a result of a chemical reaction |
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Term
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Definition
| The initial substances that undergo change in a chemical reaction |
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Term
| Single replacement reaction |
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Definition
| A reaction in which an element replaces a different element in a compound |
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