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Ipatiy [6.2K]
4 years ago
11

How many neutrons dose O^-2 have

Chemistry
1 answer:
ElenaW [278]4 years ago
8 0
Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons<span> and 8 electrons. In order to get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons (16-8) (o_O)

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How many double bonds are in CO2?<br> O 1<br> o 2<br> O 3
telo118 [61]

Explanation:

In CO₂ there's 2 double bonds.

Structure:

O=C=O (linear) (180°)

Therefore,

Option C is correct✔

7 0
3 years ago
Treatment of an alpha,beta-unsaturated ketone with basic aqueous hydrogen peroxide yields an epoxy ketone. the reaction is speci
Misha Larkins [42]
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5 0
4 years ago
What type of energy is the sum of kinetic and potetinal energy in an object that is used to do work
wolverine [178]

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6 0
3 years ago
A chemistry teacher adds 50.0 mL of 1.50 M H2SO4 solution to 200 mL of water. What is the concentration of the final solution? U
Aleks [24]
Hello!

The concentration of the final solution when a<span> chemistry teacher adds 50.0 mL of 1.50 M H2SO4 solution to 200 mL of water is 0,3 M

To calculate that, you'll need to use the dilution law, where initial and final concentrations are M1 and M2 respectively, and initial and final volumes are V1 and V2, as shown below. Keep in mind that the final volume is the sum of the 200 mL of water and the 50 mL of H</span>₂SO₄ that were added by the teacher. 

M2= \frac{M1*V1}{V2}= \frac{1,50 (mol H_2SO_4/L)*50mL}{(50 mL + 200 mL)}=0,3(mol H_2SO_4/L)

Have a nice day!
6 0
3 years ago
Read 2 more answers
True or False: Molar ratios come from the molar coefficients of balanced chemical reactions
jeka94

Answer:

1. true

2.true

3.fasle

Explanation:

sorry if im wrong.

have a lovely day.

7 0
3 years ago
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