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VLD [36.1K]
3 years ago
6

List 5 ways in which gases are helpful to you

Chemistry
2 answers:
Cerrena [4.2K]3 years ago
7 0
1. Nitrogen
2.oxygen
3. Argon
4.carbon dioxide
5. Helium
Artyom0805 [142]3 years ago
6 0

Here are 5 different types of everyday gases people use.

1. Helium helps us blow up balloons for special occasions.

2. Carbon dioxide gives us carbonated drinks.

3. Oxygen helps us weld materials.

4. Propane helps us start fires, or heats things.

5. Butane is in our everyday fire lighters/starters and even torches.

Hope I could help! :)

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OLEGan [10]

Answer:

Positive: a and b

Negative: c

Explanation:

The entropy (S) is the measure of the randomness of the system, and it intends to increase. The randomness can be determined by the energy of the molecules, their velocity and how distance they are between the other molecules.

When the entropy increases, ΔS is positive, when the entropy decreases, ΔS is negative. So, when gasoline mix with air in a car engine, the process intends to continue, the randomness increases and ΔS is positive. When hot air expands, the distance between the molecules increases, so ΔS is positive.

But, when humidity condenses, the molecules stay closer, so there's a decrease in the randomness, then ΔS is negative.

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3 years ago
What important result did Becquerel observe when he placed the uranium salt crystals and unexposed photographic film in a drawer
nexus9112 [7]
<span>B) The crystals did not phosphoresce within the drawer but did expose the film</span>
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Explain the relationship between an individual and a Society​
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Answer:

the relationship between an individual and a society is society doesn't exist independently without an individual .the individual lives and acts within society but society is nothing ,in spite of the combination of individual s for cooperation effort.

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3 years ago
What is the term used to describe why urban areas are warmer than surrounding rural areas?
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occurs when a city experiences much warmer temperatures than nearby rural areas.

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5 0
2 years ago
What process is used to refine aluminum from its ore bauxite?
Murljashka [212]

Answer:

D. Smelting

Explanation:

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Aluminum is produced from the alumina by an aluminum smelting process known as the Hall—Heroult electrolytic process which involves the use of a carbon anode and direct current to produce aluminum by reducing the aluminum oxide

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