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A sample of solidzinc is heated with an electrical coil. If 47.7 Joules of energy are added to a 10.7 gram sample initially at 24.2°C, what is the final temperature of the zinc?
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A 1.000 g sample of copper metal is heated in a crucible and after 15 minutes themass of the crucible contents is 1.111 g. Calculate the mass of copper (II) oxide that was produced.
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