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Compounds

Chapter 5

QuestionAnswer
chemical change a change that produces one or more new substances with new chemical properties
physical change a change in which the appearance(physical properties) of a substance changes, but its chemical properties stay the same
energy level one of the spaces around the nucleus of an atom in which an electron moves
ion an atom that has either a positive or a negative charge
chemical bond the attractive force that holds atoms together
chemical formula tells the kinds of atoms and how many of each kind are in a compound
subscript a number in a formula that tells the number of atoms of an element in a compound
radicals a group of two or more atoms that acts like one atom
binary compound a compound that contains two elements
acid a compound that reacts with metals to produce hydrogen
base a compound that contains the hydroxyl (OH) radical
indicator a substance that changes color when in an acid or a base
pH a number that tells whether the substance is an acid or a base
Created by: ldydye1
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