Chemical Change
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Physical Change | is any change that alters the form or appearance of a substance but does not change it into another substance
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| Chemical Change | A change in matter that produces one or more new substances
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| Reactants | Substances that undergo the chemical changes
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| Products | New substances that form
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| Precipitate | A solid that forms from liquids during chemical reaction
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| Exothermic Reaction | The energy released as the products form is greater than the energy required to break bonds of the reactants
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| Endothermic Reaction | More energy is required to break bonds of the reactants than is released by the formation of the products
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| Chemical Equation | A way to show a chemical reaction, using symbols instead of words
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| Law of Conservation of Mass | States that during a chemical reaction matter is not created or destroyed
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| Open System | Matter can enter from or escape to the surroundings
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| Closed System | Matter does not enter or leave
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| Coefficient | A number placed in front of a chemical formula in an equation
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| Synthesis | When two or more complex substances, the reaction
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| Decomposition | A reaction when compounds break down into simpler products.
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| Replacement | The reaction when one element replaces another element in a compound or if two elements in different compounds trade places
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| Activation Energy | The minimum amount of energy needed to start a chemical reaction
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| Concentration | The amount of a substance in a given volume
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| Catalyst | Lowering the activation energy needed
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| Enzymes | The cells in your body containing thousands of biological catalyst
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| Inhibitor | A material used to decrease the rate of a chemical reaction
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Created by:
ForemanL
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