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luda_lava [24]
3 years ago
15

A thin sheet of aluminum can block _____.

Chemistry
1 answer:
BartSMP [9]3 years ago
6 0
It can block light.  Please mark Brainliest!!!
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The answer is C.

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3 years ago
How many atoms are in 25.8 grams of Hg (mercury)
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7.74568E22 or 7.74568 * 10^22 atoms

Explanation:

To find this, we first must find the moles of mercury in 25.8 grams. Since the molar mass of Hg is 200.59, we can find moles of Hg from 25.8 / 200.59 = 0.1286

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.1286 * 6.02214076 * 10²³ is 7.74568E22 or 7.74568 * 10^22 atoms

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