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Mariulka [41]
3 years ago
13

All the distances are measured from the........ of spherical mirror​

Chemistry
1 answer:
slega [8]3 years ago
8 0

Answer:

All distances are measured from pole of the mirror

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A container is filled with a mixture of helium, Xenon, and neon gases. The total pressure inside the container is 1,788 mmHg. If
dmitriy555 [2]

Answer: The partial pressure of Xenon in a container filled with a mixture of helium, Xenon, and neon gases and a total pressure inside the container is 1,788 mmHg with the pressure of the helium gas as 760 mmHg, the pressure of the neon gas as 200 mmHg is 828 mmHg

Explanation:

NOTE :

Dalton's law of partial pressures states that in a mixture of gases the pressure exerted by each gas is the same as that which it would exert if it alone occupied the container.

How to determine the partial pressure

Total pressure = Partial pressure of Neon + Partial pressure of Xenon + Partial pressure of helium

Partial pressure of Xenon = ? mmHg

Partial pressure of Helium = 760 mmHg

Partial pressure of Neon = 200 mmHg

Total pressure of gases = 1, 788 mmHg

Partial pressure of Xenon = Total pressure - Partial pressure of Helium - Partial pressure of Neon

Partial pressure of Xenon = 1, 788 - 760 -200

Partial pressure of Xenon = 1,788 - 960

                                           = 828 mmHg

Thus, the partial pressure of Xenon is 828 mmHg

6 0
2 years ago
Can someone help me with this please it's for friday? We are giving the VSEPR theory. I give 100 points.​
Norma-Jean [14]

Answer: Sulfite ion has a shorter

S-O

bonds.

Explanation:

The Lewis structure of

SO

3

is

SO3

SO3

(from chemistry.stackexchange.com)

It has a total of six σ and π bonds to the three

O

atoms.

The average bond order of an

S-O

bond is

6

3

=

2

.

The Lewis structure of

SO

2

−

3

is

It is a resonance hybrid, with a total of four σ and π bonds to the three

O

atoms.

The average bond order of an

S-O

bond is

4

3

≈

1.33

.

Since bond length decreases as bond order increases,

SO

3

is predicted to have the shorter bond length.

Sulfite

Sulfite

Explanation:

3 0
2 years ago
Which of the following is a consequence of humans using fossil fuels?
julia-pushkina [17]
I think it’s A, because all of these are related to fossil fuel somehow.
4 0
3 years ago
Pls help
bezimeni [28]

Answer:

Particle Symbol Mass

electron e- 0.0005486 amu

proton p+ 1.007276 amu

neutron no 1.008665

8 0
3 years ago
Write the formula for a complex formed between zn2 and nh3, with a coordination number of 3.
statuscvo [17]
ZnSO₄ + 3NH₃ = [Zn(NH₃)₃]SO₄ threeamminezinc sulfate

Zn²⁺ + 3NH₃ = [Zn(NH₃)₃]²⁺  threeamminezinc cation
4 0
3 years ago
Read 2 more answers
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