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21-04-2024
Chemistry

contestada

The mass of a copper atom is 1. 045 x 10E⁻²² g. How many copper atoms are present in a 94. 5 g sample of copper
a. 9. 04 x 10²³
b. 1. 045 x 10⁻²²
c. 1870
d. 94. 5

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