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Paha777 [63]
3 years ago
15

What element is represented in this model of the atomic number is 3 This is science

Chemistry
1 answer:
Amanda [17]3 years ago
6 0

Answer:

lithium because it has an atomic number of three(you could have just googled which element has the atomic number 3)

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Weathering and erosion are the only
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false

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A compound composed of only c and f contains 17.39 c by mass. what is its empirical formula
Ostrovityanka [42]

Since the Carbon C is 17.39% by mass hence the Fluorine F is 82.61% by mass. Divide each mass % by the respective molar masses, that is:

 

C = 17.39 / 12 = 1.45

F = 82.61 / 19 = 4.35

 

Divide the two by the smaller number, so divide by 1.45

 

C = 1.45 / 1.45 = 1

F = 4.35 / 1.45 = 3

 

So the empirical formula is:

CF3 

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