2 years ago

If I have an unknown quantity of gas at a

Chemistry

1 answer:

Alekssandra [29.7K]2 years ago

5 0

Answer:

2.222 that is the answer i think might want to ask

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On a planet where the temperature is so high, the ground state of an electron in the hydrogen atom is n = 4. What is the ratio o

kvv77 [185]

Answer:

1:16

Explanation:

The ground state of an electron on the planet is n = 4 compared the ground state of an electron at n =1. For a hydrogen atom, the electron energy level is given as:

$E(n)=\frac{13.6}{n^2}\\ \\Where\ n\ is\ the\ ionization \ energy$

$E(4)=\frac{13.6}{4^2}=\frac{13.6}{16}\\ \\E(1)=\frac{13.6}{1^2}=\frac{13.6}{1}\\ \\The\ ratio\ of\ their\ ionization\ energy=\frac{E(4)}{E(1)} =\frac{\frac{13.6}{16} }{\frac{13.6}{1} } =\frac{1}{16}=1:16$

Hence the ratio of their ionization energies is 1:16

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3 years ago

Which of the following are parts of the excretory system? *

Kay [80]

Answer:

kidney, bladder, rectum, urethera

Explanation:

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3 years ago

In the reaction shown above , the?

matrenka [14]

Answer:

I think option (d) is right answer

8 0

3 years ago

Balance the following reaction:

kvv77 [185]

C_5H_8+13/2O_2—»5CO_2+4H_2O

Balanced one

2C_5H_8+13O_2—»10CO_2+8H_2O

Moles of Pentyne

Given mass/Molarmass
34/68
0.5mol

Moles of H_2O

8/2(0.5)
4(0.5)
2mol

1mol releases 241.8KJ

2mol releases 241.8(2)=483.6KJ

8 0

1 year ago

Two descriptions about physical quantities are given below:

gladu [14]

Answer:

Quantity A is weight and Quantity B is mass

Explanation: weight has same unit as force. Mass is the quantity of matter present in a body or object

8 0

2 years ago

Read 2 more answers