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k0ka [10]
2 years ago
8

Will get brainlest and i with 10 points if right

Chemistry
1 answer:
Dima020 [189]2 years ago
4 0

Answer: D

Explanation:

They form from Coal under high high pressure and many many years

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GIVING BRAINLIEST FOR RIGHT ANSWERS PLS HELP
Anuta_ua [19.1K]

Answer:

Answer: Chemical change; Chemical property of heat of combustion

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Explanation:

4 0
2 years ago
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Mars is known as the ____ planet.<br><br> A) Blue<br> B) Gaseous<br> C) Red<br> D) Sandy
Leni [432]

Answer:

Of course it's C

Red planet

Explanation:

It is because the soil on Mars is rich of Fe (Iron).

That makes the soil look red.

Even on our planet we have such this places like hormuz island in Iran.

5 0
3 years ago
At constant temperature the pressure on a 6.0 L sample of a gas is reduced from 2.0 atm to 1.0 atm. What is the new volume of th
kotegsom [21]
P1V1=P2V2, so P1V1/P2=V2.
2atm x 6.0 L/1.0 atm = 12.0 L
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4 0
3 years ago
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Protons and neutrons are found in the nucleus. these two types of charges are referred to collectively as _____
solmaris [256]

Answer:

Nucleon

Explanation:

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3 years ago
What is the pressure exerted by a 0.500 mol sample of nitrogen in a 10.0 L container at 20°C?
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