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jeyben [28]
3 years ago
5

Which TWO statements describe the ocean floor giving brainliest pls help explain ur answer

Chemistry
1 answer:
Gelneren [198K]3 years ago
8 0

Answer:

Dude im not 100% sure but I think its b and c im sorry if im wrong its just that im not really sure which ones are.

Explanation:

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How many miles are there in 20g of KClO3 (k=39 Cl=35.5 O=16)​
SashulF [63]
<h3>Answer:</h3>

0.144 moles

<h3>Explanation:</h3>
  • The relationship between mass of a compound, number of moles and molar mass of the compound is given by;
  • Number of moles = Mass ÷ Molar mass
  • Molar mass is equivalent to the relative formula mass of the compound that is calculated the atomic masses of the elements making the compound.

In this case;

Our compound, KClO3 will have a molar mass of;

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Therefore;

Number of moles = 20 g ÷ 138.5 g/mol

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Thus, the number of moles in 20 g of KClO3 is 0.144 moles

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