Part A Separate the pennies you have into two groups: one group with pennies dated before 1982 and the other with pennies dated before 1982. Compare the two groups record any similarities or differences in size or appearance that you notice between the groups. (Activity: identifying a substance by its properties)
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Chemistry, 21.06.2019 16:30
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Chemistry, 22.06.2019 06:40
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Part A
Separate the pennies you have into two groups: one group with pennies dated before 1982 and...
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