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2 years ago

Which components of a galaxy exist in the space between the stars?

Chemistry

2 answers:

Gnesinka [82]2 years ago

6 0

The answer is
b: gas and dust

blsea [12.9K]2 years ago

5 0

Answer:

(b) gas and dust

Explanation:

"The interstellar medium is the stuff between the stars. Made up mostly of hydrogen and helium gas – plus trace amounts of ices, silicate grains, and all the other elements – it contains all the material needed to make stars and planets. It is shaped by stellar winds, dying stars, galactic magnetic fields, and supernova explosions."

"The interstellar medium is filled primarily with hydrogen gas. A relatively significant amount of helium has also been detected, along with smaller percentages of such substances as calcium, sodium, water, ammonia, and formaldehyde . Sizable quantities of dust particles of uncertain composition are present as well."

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What qualifications do you need to be a research scientist?

il63 [147K]

Answer:

B and D

Explanation:

6 0

3 years ago

Which substance would have the highest melting point, based on electronegativity?

kenny6666 [7]

Water, H₂O, will have the highest melting point.

Explanation:

So here we have listed the hydrides of oxygen, sulphur, selenium and tellurium.

From this elements oxygen have the highest electronegativity and as a consequence the oxigen hydride (water, hydrogen dioxide) it is able to form hydrogen bonds between molecules. So you need more energy to overcome the interactions between molecules in water that for the other compounds.

Water, H₂O, will have the highest melting point between the listed hydrides.

Learn more about:

hydrogen bonds

brainly.com/question/3157382

#learnwithBrainly

4 0

3 years ago

why don't we ever see solid or liquid oxygen on earth?

NeTakaya

Please mark me brainiest!

The reason why you don’t see solid or liquid oxygen is because oxygen is a natural occurring gas. Gas can not be solid or liquid because there is too much energy to have volume/shape. That’s why you see oxygen tanks, as the tank keeps the gas contained and that is why you can’t see it in the air outside or in something like H20 (water).

Hope this helps :)

Just don’t open the link in the other answer. It’s a scam...

6 0

3 years ago

What type of element is Hydrogen? Where do you see hydrogen present?

PSYCHO15rus [73]

/~\ The correct answer is:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hydrogen is a chemical and is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I hope this helps! /~\

8 0

2 years ago

Label the following changes as Physical or

Leno4ka [110]

Answer:

Two clear liquids mix and form a

white solid

18.chemical

A pot of water begins to

boil

19.Physical

the rest im usure on.

5 0

3 years ago