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The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
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Is a pencil falling to the floor anon contact force, a force, or a contact force
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Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease
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What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures
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Agood way for someone to identify similar substances is to measure their densities true or false...
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