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ehidna [41]
3 years ago
11

Which describes an covalent bond?

Chemistry
2 answers:
Ilya [14]3 years ago
8 0

Answer:

is there choices you have to pick from

Explanation:

or do you have to describe a covalent bond ?

Elena-2011 [213]3 years ago
4 0

Answer:

sharing of electron between two atoms

Explanation:

these electrons are simultaneously attracted by two atomic nuclei..covalent bond are formed when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.

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how many grams of oxygen are produced if 25.0g of potassium chlorate decomposes according to the reaction 2KCLO3 —-> 2KCL +3O
AveGali [126]

Answer:

approximately 15.1 grams.

Explanation:

The key to chemistry is to change everything to moles. Then when you have the answer in moles change the answer back to grams, liters, or whatever you want.

change 25 grams of potassium chlorate to moles.

calculate the gram molecular mass of potassium chlorate.

Chlorate is Cl with 3 oxygens. ate = saturated. Chlorine has seven valance electrons when it is saturated six of these electrons are used by oxygen ( 2 electrons per oxygen) leaving only 1 electron.

1 K x 39 grams/mole

+1 Cl x 35.4 grams/ mole

+3 O x 16 grams/ mole

= 122.4 grams / mole Potassium Chlorate

25

122.4

= moles.

2.05 moles of Potassium Chlorate.

There is a 1:1 mole ratio. 1 mole of Potassium Chlorate will produce 1 mole of Potassium Chloride.

2.05 moles of Potassium Chlorate will produce 2.05 moles of Potassium Chloride.

Find the gram molecular mass of Potassium Chloride.

1 K x 39 = 39

+1 Cl x 35.4 = 35.4

= 74.4 grams / mole.

2.05 moles x 74.4 grams/ mole = 15.2 grams

Hope it helps :)

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3 years ago
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A natural charge by an atom is caused by which of the following conditions?
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Answer:

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Since electrons are negative and protons are positive, having a balanced number of both of these would cause an atom to have a neutral charge.

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