Chemistry Lab Manual®

Today's penny is quite different from the penny of a decade ago. .Before 1982, pennies were made of an alloy of copper. Since then, they have been made with an outside coating of copper and an inner core of a different metal. ... (C. Assume the density of the solution is the same as water (1g/mL) and use the specific heat of water 4.18 J/g .(C … ................
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