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chemical reaction/
key terms for chemical reactions and acids/bases
Question | Answer |
---|---|
acid | a substance that tastes sour, reacts with metals and carbonates, and turns litmus paper red |
base | a substance that tastes bitter, feels slippery, and turns litmus paper blue |
chemical equation | a short, easy way to show a chemical reaction, using symbols instead of words |
chemical reaction | the process in which substances undergo chemical changes that results in the formation of new substances |
chemical formula | a combination of symbols that represent elements in a compound |
chemistry | the study of the properties of matter and how matter changes |
coefficient | a number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in an reaction |
corrosive | the way in which acids react with some metals so as to eat away the metal |
decomposition | a chemical reaction that breaks down compounds into simpler products |
indicator | a compound that changes color in the presence of an acid or base |
pH scale | a range of numbers used to express the concentration of hydrogen ions in a solution |
product | a substance formed as a result of a chemical reaction |
reactant | a substance that enters into a chemical reaction |
replacement | a reaction in which one element replaces another in a compound; or when two elements in different compounds trade places |
subscript | a number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound |
synthesis | a chemical reaction in which two or more simple substances combine to form a new, more complex substance |