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Physical Science Ch. 7 Voc. Overview

Mrs. Chandler

Word Bank
catalyst, chemical energy, chemical equation, coefficients, combustion reaction, decomposition reaction, double replacement reaction, endothermic reaction, equilibrium, exothermic reaction, molar mass, mole, oxidation reduction reaction, products, reactants, reaction rate, reversible reaction, single replacement reaction, synthesis reaction

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19                                  
       
     
 

Across
2.the mass of one mole of a substance. (2 Words)
8.the numbers that appear before the formulas.
12.an amount of a substance that contains approximately 6.02 x 10 to the 23rd power particles of that substance.
17.when 2 different compounds exchange positive ions and form 2 new compounds. (3 Words)
19.a representation of a chemical reaction in which the reactants and products are expressed as formulas. (2 Words)
Down
1.the rate at which reactants change into products over time. (2 Words)
3.a reaction in which one element takes the place of another element in a compound. (3 Words)
4.a reaction in which electrons are transferred from one reactant to another. (3 Words)
5.a reaction in which a compound breaks down into 2 or more simpler substances. (2 Words)
6.a chemical reaction that absorbs energy from its surroundings. (2 Words)
7.the substances that undergo change in a chemical reaction.
9.when a substance reacts rapidly with oxygen often producing heat and light. (2 Words)
10.a chemical reaction that releases energy to its surroundings. (2 Words)
11.a reaction in which the conversion of reactants into products and the conversion of products into reactants can happen simultaneously. (2 Words)
13.the energy stored in the chemical bonds of a substance. (2 Words)
14.a reaction in which 2 or more substances react to form a single substance. (2 Words)
15.a substance that affects the reaction rate without being used up in the reaction.
16.a state in which the forward and reverse paths of a change take place at the same rate.
18.the new substances formed as a result of a chemical change.

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