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hammer [34]
3 years ago
13

Pleaseee help it’s 20 points

Chemistry
2 answers:
Julli [10]3 years ago
5 0
I’m pretty sure it’s nitrogen and oxygen but i’m not positive
jolli1 [7]3 years ago
4 0
Nitrogen and oxygen
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Which statement correctly describes the location and charge of the neutrons in an atom?
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Answer:

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Explanation:

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A rock that is made of coarse-grained particles arranged into bands is found. What type of rock is it?
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Draw the Lewis structure (including all lone pair electrons and any formal charges) for one of the four possible isomers of C3H9
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Answer and Explanation

The isomer picked is the N-Propylamine.

It has a lone pair of electron available on the electron rich Nitrogen and no formal charge.

Since it will be hard to draw the Lewis structure in this answer format, I'll attach a picture of the Lewis structure to this answer.

The lone pair of electron is shown by the two dots on the Nitrogen atom.

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2 years ago
What did Dalton’s atomic theory teach
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Answer:

  • All matter is composed of atoms.
  • Atoms are not destructible.
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  • In the chemical reactions, atoms are rearranged.
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Explanation:

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6 0
3 years ago
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When 0. 25 g of the organic compound naphthalene are burned in a bomb calorimeter, the temperature of the water in the calorimet
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-2.5089 kJ is the amount of heat is released by the combustion of the naphthalene.

<h3>How we calculate the released heat?</h3>

Released amount of heat is calculated by using the below formula:

Q = -mcΔT, where

m = mass of naphthalene = 0.25g

c = specific heat of calorimeter = 4.13 kJ/°C

ΔT = change in temperature = 26.43°C - 24°C = 2.43°C

Putting all these values in the above equation, we get

Q = - (0.25 × 4.13 × 2.43) = - 2.5089 kJ

Hence, - 2.5089 kJ heat is released.

To know more about released heat, visit the below link:

brainly.com/question/13439286

8 0
2 years ago
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