Chapter 7 Vocabulary: Types of Chem Rxns
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Activity Series of Metals | A table listing metals in order of decreasing activity. (7.8)
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| Coefficient | A small whole number that appears in front of formula in a balanced chemical equation. (7.4)
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| Decomposition Reaction | A chemical change in which a single compound is broken down into two or more simpler products. (7.7)
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| Skeleton Equation | A chemical equation that DOES NOT indicate the relative amounts of reactants and products. (7.2)
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| Balanced Equation | A chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element. (7.4)
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| Combination Reaction (Synthesis Reaction) | A chemical change in which two or more substances react to form a single new substance. (7.6)
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| Double-Replacement Reaction | A chemical change that involves an exchange of positive ions between two compounds. (7.9)
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| Spectator Ion | An ion that does not change oxidation number or compositon during a reaction. (7.12)
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| Catalyst | A substance that speeds up a reaction without being used up. (7.2)
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| Combustion Reaction | A chemical change in which oxygen (O2) reacts with another substance, often producing energy in the form of heat and light. (7.10)
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| Net Ionic Equation | An equation for a reaction in solution showing only those particles that are directly involved in the chemical change. (7.12)
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| Diatomic Molecule | Contain two atoms of the same element.(page 114)
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| Chemical Equation | An expression representing a chemical reaction; the formulas of the reactants (on the left) are connected by an arrow (--->) with the formulas for the products (on the right) (7.2)
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| Complete Ionic Equation | An equation for a reaction in solution showing all strong electrolytes as ions (7.12)
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| Single-Replacement Reaction | A chemical change in which atoms of an element replace atoms of a second element in a compound; also called a displacement reaction. (7.8)
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| Precipitate | The formation of a solid in a solution in a chemical reaction.
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