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PtichkaEL [24]
3 years ago
8

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

Chemistry
2 answers:
Gnesinka [82]3 years ago
6 0
The answer is
b: gas and dust
blsea [12.9K]3 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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An unknown metal absorbs 61 J of heat, and its temperature increases by 29∘C. What is the heat capacity of the metal?
aniked [119]

Answer:

2.103 J/C

Explanation:

Quantity of heat = Heat Capacity * Temperature change

Heat Capacity = Quantity of heat / Temperature Change

Heat Capacity = 61/29

Heat Capacity = 2.103 J/C

3 0
3 years ago
How much heat is evolved when 1260 g of water condenses to a liquid at 100.°C?
Paul [167]
Moles H2O = 1233 g/ 18 g/mol=68.5 68.5 x 40.7 =2788 kJ
8 0
3 years ago
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How do you mix solids?
Monica [59]

Answer:

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3 years ago
One mole of X contains how many molecules of X
mixer [17]

Answer:

The mole is represented by Avogadro's number, which is 6.022×1023 atoms or molecules per mol

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5 0
3 years ago
What does a mole of iron weigh
r-ruslan [8.4K]

As the atomic mass of iron is 55.847u

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= 55.847g of Fe

3 0
4 years ago
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