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20 Cards in this Set
- Front
- Back
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Chemical Energy
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The energy stored in the chemical bonds within a substance
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Chemical Equation
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A representation of the chemical reaction in which the reactants and the products are expressed as formulas
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Combustion Reaction
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A chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light
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Decomposition Reaction
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A chemical reaction in which a compound breaks down into two or more simpler substances
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Double Replacement Reaction
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A chemical reaction in which two compounds exchange positive ions and form two new ions
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Endothermic Reaction
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A chemical reaction that absorbs more energy than it releases
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Exothermic Reaction
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A chemical reaction that releases more energy than it absorbs
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Molar Mass
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The mass of one mole of a substance
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Mole
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An amount of a substance that contains approximately 6.02 x 1023 particles of the substance
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Oxidation Reduction Reactions
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A chemical reaction in which electrons are transferred from one reactant to another
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Products
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A new substance formed as a result of a chemical reaction
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Reactants
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A substance that undergoes a change in a chemical reaction
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Single Replacement Reaction
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a chemical reaction in which one element takes the place of another element in the compound
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Synthesis Reaction
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A chemical reaction in which two or more substances reacts to form a single substance
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Coefficients
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A number that appears before a formula in a chemical equation to show the relative proportions of each reactant and product
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Law of Conservation of Mass
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The law of conservation of mass states that mass is neither created nor destroyed
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Types of Chemical Reaction
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Synthesis
Decomposition Single Replacement Double Replacement |
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What happens to the chemical bonds when a chemical reaction occurs
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Chemical reactions involve the breaking of chemical bonds in the reactants and the formation of bonds in the product.
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How to Identify an Endothermic or Exothermic Reaction
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Exothermic: releases heat, kJ in the products
Endothermic: absorbs heat, kJ in the reactant |
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What factors increase and decrease reaction rates
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Temperature: Particles move faster, collide more
Surface Area: increases exposure, more collisions Movement: increase exposure; collisions Concentration: more reacting particles Catalysts: lowers energy barrier required to break when colliding |
