3 years ago

Why do molecules of oxygen have to have an even number of atoms?

1 answer:

6 0

Answer:this is all i found out

Oxygen is known as a diatomic molecule. Oxygen atom has atomic number as 8 so it has its K shell completely filled with 2 electrons. While it has only 6 electrons in L shell which requires 8 electrons to get inert gas configuration. So oxygen atom shares 2 electrons with another oxygen atom to form a diatomic molecule.

Explanation:

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The theoretical yield for a reaction is 55.9 g LiCl. The actual yield is 24.6 g LiCl. What is the percent yield of the reaction?

xenn [34]

In chemical reactions, the actual yield is not the same as the expected yield . Actual yield is lower than the theoretical yield . Then we have to find the yield percentage. To see what percentage of the theoretical yield is the actual yield.
Percent yield = actual yield / theoretical yield x 100%
Percent yield = 24.6/55.9 x100%
Percent yield = 44%

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3 years ago

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What is the percent by mass of oxygen fe2o3 (formula mass= 160)?

GarryVolchara [31]

30% should be the percentage of oxygen if the total mass of fe2o3 is 160.

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3 years ago

Lithium chloride forms three hydrates. They are LiCl.H2O, LiCl.2H2O and LiCl.3H2O.

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Answer:

The answer is LiCl.2H2O

Explanation:

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%comp=36/78.5×100

45.9

LiCl.3H20

7+35.5+3(2+16)

42.5+54

96.5

54/96.5×100

56.0

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As the [ht] in a solution decreases, what happens to the [OH???

dimulka [17.4K]

Why you saying we can download an answer we’re here for an answer

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Which of the following is an example of an exothermic reaction?

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Answer:

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