This flask originally held some copper wire and a clear solution of nitric acid. the two substances reacted and produced a brown gas and a blue solution. this reaction cannot be reversed. evidence of a chemical reaction is shown by a) ice forming. b) steam rising. c) the formation of a gas. d) a change in state from a solid to a liquid.
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This flask originally held some copper wire and a clear solution of nitric acid. the two substances...
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