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g100num [7]
4 years ago
10

How can so many different substances in the world be made of so few elements?

Chemistry
1 answer:
Mrrafil [7]4 years ago
7 0
Matematically speaking, maybe because:
The number of substances = number of elements + number of different combinations of those elements
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What is the theoretical yield of aluminum that can be produced by the reaction of 60.0 g of aluminum oxide with 30.0 g of carbon
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Answer: 31.8 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} Al_2O_3=\frac{60.0g}{102g/mol}=0.59moles

\text{Moles of} C=\frac{30.0g}{12g/mol}=2.5moles

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1 mole of Al_2O_3 require 3 moles of C

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As 1 mole of Al_2O_3 give = 2 moles of Al

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5 0
3 years ago
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