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stiv31 [10]
3 years ago
7

What does the atomic number of each atom represent?

Chemistry
1 answer:
saw5 [17]3 years ago
6 0
It's the number of Protons of that atom..
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CHEM HELP PLZZZZ!!!!!
earnstyle [38]

Answer:

1. acid

2. neutral

3. acid

4. base

5. acid

6. base

7. neutral

8. acid

9. base

10. base

Explanation:

I'm not 100 percent positive about number three but the rest I believe are correct

3 0
3 years ago
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___ and ___ are located in the nucleus of the atom while ____ exist in orbitals in the empty space outside of the nucleus
bogdanovich [222]

Answer:

Neutrons and Protons, Electrons

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Neutrons and protons are in the inside as electrons orbit around it in a circular pattern

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3 years ago
The density of liquid mercury is 13.69 g/cm^3. How many atoms of mercury are in a 15.0 cm^3 sample? Use "E" for "x10" and use si
balu736 [363]
The formula is  m = D x V
D = <span>13.69 g/cm^3.
</span>V = <span>15.0 cm^3 
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the molar mass of Hg is 200,
1 mole of Hg = 200g Hg, so #mole of Hg= 195 / 200 = 0.97 mol
but we know that
 1 mole  = 6.022 E23 atoms
0.97 mole=?

6.022 E23 atoms x 0.97 / 1 mole = 5.84 E23 atoms
6 0
3 years ago
What is required for an electron to move between energy levels?
Bingel [31]
It required a fixed finite amount these zones are known as energy levels
4 0
3 years ago
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A student was asked to find the molar mass of calcium nitrate, Ca(NO3)2. she added the molar masses of calcium, nitrogen, and ox
dlinn [17]

Answer: 116g/mole

Explanation:

She didn't get the answer because she didn't add the them well , due to the bracket present.

3 0
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