Multiple Choice
How many Cu atoms are present in a 75.0 cm length of 20-gauge copper wire? A 20-gauge wire has a diameter of 0.03196 in.Copper's density is 8.92 g/cm3.
A) 1.31 × 1021
B) 3.28 × 1022
C) 8.08 × 1021
D) 1.04 × 1022
E) 2.08 × 1022
Correct Answer:
Verified
Correct Answer:
Verified
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