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forsale [732]
3 years ago
10

Oxidation happens when substances are combined with _____.

Chemistry
2 answers:
Ganezh [65]3 years ago
8 0
The answer is D. Oxygen.
lina2011 [118]3 years ago
8 0

It's Oxygen that's the answer

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How many atoms are in 2.70 moles of iron (Fe) atoms? (2 points)
Travka [436]
Hey there!

2.70 moles of Fe x (6.022 x 10^23) atoms of Fe    = 1.63 x 10^24 atoms of Fe
                             _______________________
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7 0
3 years ago
6 How many moles are in a 321 g sample of magnesium?
Tatiana [17]

Answer:

13.4mol of Mg

Explanation:

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 Insert the parameters and solve;

        Number of moles  = \frac{321}{24}   = 13.4mol of Mg

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