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Over [174]
2 years ago
5

D) +1

Chemistry
1 answer:
timurjin [86]2 years ago
6 0

Answer:

I guess letter A

Explanation:

but the real number of oxidation of PO-

p=1

O= -2

can you explain, how can I answer this question?

I know how to get the oxidation but the problem is there nothing to the options.

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Please help<br><br><br> How many moles are there in 7.57 x 10^30 molecules of CO2?
Oxana [17]

Answer:

The answer is

<h2>12,574,750.83 moles</h2>

Explanation:

In order to find the moles of CO2 we use the formula

n =  \frac{N}{L} \\

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From the question

N = 7.57 × 10^30 molecules of CO2

We have

n =  \frac{7.57 \times  {10}^{30} }{6.02 \times  {10}^{23} }  \\  = 12574750.83056...

We have the final answer as

<h3>12,574,750.83 moles</h3>

Hope this helps you

3 0
3 years ago
2.00−g sample of a metal X (that is known to form X2+ ions) was added to 0.100 L of 0.500 M H2SO4. After all the metal had react
xz_007 [3.2K]

Answer:

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from the balanced chemical equation of the reaction

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2 years ago
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