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Kitty [74]
2 years ago
6

In an electron configuration ,what does the s in 1s2 represent?

Chemistry
1 answer:
N76 [4]2 years ago
7 0

Answer:

The superscript after the letter

tells us the electrons are in the n=2 energy level.

Explanation:

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what concentration in parts per million in a solution that contains .008 grams of o2 dissolved in 1000 grams of water
julia-pushkina [17]
Ppm = mass of solute mg / mass of solvent kg

0.008 * 1000 =  8.0 mg ( solute )

1000 / 1000 = 1.0 kg (solvent )

ppm = 8 / 1

= 8.0 ppm

hope this helps!
7 0
3 years ago
The carbon-carbon double bond in ethene is ________ and ________ than the carbon-carbon triple bond in ethyne.
lbvjy [14]

Answer:

weaker and longer

Explanation:

Since there are 3 bonds in ethyne in comparision with the 2 bonds of ethyne between carbon atoms, they are attracted more to each other → the bond gets shorter . And since there are one more bond that supports the union → the bond gets stronger

thus the carbon-carbon double bond in ethene is weaker and longer than the carbon-carbon triple bond in ethyne

3 0
2 years ago
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Answer:

I don't know

Explanation:

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7 0
2 years ago
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-Dominant- [34]

Answer:

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4 0
2 years ago
Which of these is an example of a physical change?
vladimir2022 [97]

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