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4 years ago

How many energy levels do the electrons in oxygen occupy?

2 answers:

8 0

The correct answer would be B. The first level contains two and the second level contains six holding a total of eight, the reason eight aren't just in one row is because only two fit in the first row.

Rashid [163]4 years ago

8 0

Electrons in oxygen occupy B.2 energy levels 2 in the first level and 6 in the second level.
hope this helps

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A charge of 6.4x 10^-7 c experiences an electric force of 1.8 x10^-1 N. What is the electric field strength ?

laila [671]

Electric
field strength = Electric force/charge
E = F/q
E = (1.8×10^-1) / (6.4×10^-7)
E = 2.81×10^5 NC^-1

Hope it helped!

5 0

3 years ago

Balance the following chemical equation:<br> H3PO4 + HCl → PC15 + H20

kipiarov [429]

Answer:

H3PO4 + 5HCl → PCl5 + 4H2O

Explanation:

3 0

3 years ago

The pressure exerted on a sample of a fixed amount of gas is doubled at constant temperature, and then the temperature of the ga

scoray [572]

It might be D I hope it helps

6 0

3 years ago

Read 2 more answers

Helium gas is in a cylinder that has rigid walls. If the pressure of the gas is 2.00 atm, then the root-mean-square speed of the

aivan3 [116]

Answer:

$p=p_{2}-p_{1}=2.9188atm$

Explanation:

First step

To calculate by how much the pressure has been increased we must find a relation between Vrms and the pressure p

$V_{rms}=\sqrt{\frac{3RT}{M} } \\$

Where M is molar mass,R is gas constant and T is temperature

As R and M is constant so we obtain

Vrams∝√T

Second step

From Ideal gas law we know that

$pV=nRT\\$

we will find that

p∝T

So from first and second step, we can obtain that

Vrms∝√p

And a relation between both of them could be given by:

$\frac{V_{rms1} }{V_{rms2}}=\frac{\sqrt{p_{1} } }{\sqrt{p_{2}} }\\ p_{2}=[\frac{(V_{rms1})^{2} }{(V_{rms2})^{2} }]p_{1}\\ p_{2}=\frac{(276m/s)^{2} }{(176m/s)^{2} } (2atm)\\p_{2}=4.9188atm$

The pressure is increased to 4.1988 atm, so the amount will be given by:

$p=p_{2}-p_{1}=4.9188atm-2atm\\p=p_{2}-p_{1}=2.9188atm$

7 0

3 years ago

Which gas is found in air in the smallest amounts

Drupady [299]

Answer: Water Vapor

Explanation:

Consequently, when water vapor is mixed with air, the density of the mixture will be less than that of dry air.

7 0

4 years ago

Read 2 more answers