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3 years ago

What is the oxidation number of oxygen in OF2

2 answers:

5 0

Well flourines oxidation number is -1 and since theres is two fluorine you multiply -1 by two witch gives you -2 meaning oxygen's has to be positive 2 since there is only one oxygen<span />

Serga [27]3 years ago

3 0

Oxygen almost always has an oxidation number of -2

The only exception is in H2O2 which makes it -1, and in OF2 which makes it +2

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stealth61 [152]

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3 years ago

Si Units Worksheet. Use si units to complete

Keith_Richards [23]

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8 0

3 years ago

Calculate the mass in 4.05*10^22 molecules of calcium phosphate

Marizza181 [45]

Answer:

m = 20.9 g.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to solve this problem by recalling both the Avogadro's number for the calculation of the moles in the given molecules of calcium phosphate and the molar mass of this compound in order to secondly calculate the mass as shown on the following setup:

$m=4.05x10^{22}molecules*\frac{1mol}{6.022x10^{23}}*\frac{310.18g}{1mol}\\\\m=20.9g$

Regards!

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chubhunter [2.5K]

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tia_tia [17]

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