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KMHS_Chemistry
Chapter 7 Vocabulary: Types of Chem Rxns
| Question | Answer |
|---|---|
| Activity Series of Metals | A table listing metals in order of decreasing activity. (7.8) |
| Coefficient | A small whole number that appears in front of formula in a balanced chemical equation. (7.4) |
| Decomposition Reaction | A chemical change in which a single compound is broken down into two or more simpler products. (7.7) |
| Skeleton Equation | A chemical equation that DOES NOT indicate the relative amounts of reactants and products. (7.2) |
| 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) |
| Combination Reaction (Synthesis Reaction) | A chemical change in which two or more substances react to form a single new substance. (7.6) |
| Double-Replacement Reaction | A chemical change that involves an exchange of positive ions between two compounds. (7.9) |
| Spectator Ion | An ion that does not change oxidation number or compositon during a reaction. (7.12) |
| Catalyst | A substance that speeds up a reaction without being used up. (7.2) |
| 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) |
| Net Ionic Equation | An equation for a reaction in solution showing only those particles that are directly involved in the chemical change. (7.12) |
| Diatomic Molecule | Contain two atoms of the same element.(page 114) |
| 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) |
| Complete Ionic Equation | An equation for a reaction in solution showing all strong electrolytes as ions (7.12) |
| 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) |
| Precipitate | The formation of a solid in a solution in a chemical reaction. |
Created by:
KellyBeck
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