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vlada-n [284]
2 years ago
12

Research the compositions of Pennies. What was the composition of each of your Pennies prior to treatment

Chemistry
1 answer:
LenKa [72]2 years ago
7 0

Answer:

History of composition

Years Material Weight (grains)

1944–1946 gilding metal (95% copper, 5% zinc) 48 grains

1947–1962 bronze (95% copper, 5% tin and zinc) 48 grains

1962 – September 1982 gilding metal (95% copper, 5% zinc) 48 grains

October 1982 – present copper-plated zinc (97.5% zinc, 2.5% copper) 38.6 grains

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Answer:

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Explanation:

The above 3 steps will yield acetophenone from methylbenzoate

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3 years ago
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6 0
3 years ago
Read 2 more answers
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sergij07 [2.7K]

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3 0
3 years ago
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