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Daniel [21]
3 years ago
10

What does standard deviation reveal about data?

Chemistry
1 answer:
NISA [10]3 years ago
4 0

Answer:

A. The average of all the data points

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Which element and how many atoms does each compound have in the picture?
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The first one has 35 atoms and the elements hydrogen, oxygen and chlorine

The second one has 9 atoms and the elements sodium, carbon, and helium
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Sam investigates the reactivity of metals in air. His observations are shown below.
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Answer:5

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How many grams is needed to make the following solution?
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c

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yxyyyxyxxyxxy yy y gg ff ff d d f t r rr rr rr rr r r t tt t

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6 0
3 years ago
If you have 5.42 x 1024 aluminum atoms, approximately how many moles is that
sattari [20]

Answer:

<h2>9.00 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

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

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{5.42 \times  {10}^{24} }{6.02 \times {10}^{23} }  \\  = 9.0033

We have the final answer as

<h3>9.00 moles</h3>

Hope this helps you

4 0
3 years ago
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