Chemistry Word Scramble
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Term | Definition |
chemistry | the study of the properties of matter and how matter changes |
element | a substance that cannot be broken down into any other substances by chemical or physical means |
compound | a substance made of two or more elements, chemically combined in a specific ration, or proportion |
mixture | made from two or more pure substances-elements, compound, or both- that are in the same place but not combined as a new material |
solution | a well-mixture |
physical | a changes that alters the form or appearance of a material but does not make the material into another substance |
chemical change | a change in matter that produces new substances |
precipitate | a solid that form from solution during a chemical reaction |
atom | the smallest particles of an element |
molecule | the combination of two or more atom |
chemical bond | the force that hold atoms together |
chemical equation | a shorter, easier way to show chemical reactions, using symbols instead of words |
symbol | most element are represented by a one-letter or two- letter |
chemical formula | which shows the ratio of element in the compound |
subscript | show the number of atom of an element in a molecule |
reactants | the materials you have at the beginning of chemical reaction |
products | when the reaction is complete you have different materials |
coefficient | a number in front of a chemical formula in the equation |
synthesis | when two or more substances (element or compounds) combine to make a more complex substance the process |
decomposition | reaction breaks down compounds into simpler products |
replacement reaction | a reaction in which one element replace another in a compound or in which two element in different compound trade places |
exothermic reaction | a reaction that releases energy in the form of heat |
endothermic reaction | a reaction that absorbs energy |
activation energy | the minimum amount of energy that has to be added to start a reaction |
concentration | the amount of one material in a given volume of another material |
catalyst | a material that increases the rate of a reaction by lowering the activation energy |
enzymes | provide a surface on which reaction take place |
inhibitor | a material used to decrease the rate of reaction |
combustion | a rapid reaction between oxygen and a substance called a fuel |
fuel | a material the releases energy when it burns |
Created by:
magz25
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