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shepuryov [24]
3 years ago
6

Which of the following is the final fate of a very massive star?

Chemistry
1 answer:
STatiana [176]3 years ago
8 0

D. Black holes

When a star dies out it explodes and causes a supernova and after a very long period of time the supernovas gasses vanish and the star can be visibly identified as a black hole!

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The correct answer is option <u><em>D) a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid.</em></u>

I just did the quiz and got it right!

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3 years ago
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Calculate the boiling point of a 3.60 m aqueous sucrose solution. express the boiling point in degrees celsius to five significa
kvv77 [185]
We can use this equation for boiling point elevation:
ΔT(b) = i K(b) M
when Δ T(b) is the increase of boiling point of the solution.
and i is ( vant Hoff factor, the number of particles or ions per mole-clue.
and K(b) is boiling point increase constant for the solution ( and for water it is equal 0.52 C° Kg/mol)
We can assume i (vant Hoff factor ) = 1 as the sucrose is nonelectrolyte (not readily ionize).
So for water: Tb° = 100 c° and Kb = 0.52 c° Kg / mol
By substitute at:
ΔTb = i Kb M
∴  = 1 * 0.52 * 3.60 = 1.8432 C°
and when Tb = Tb° + ΔTb
∴  Tb = 100 + 1.8432 = 101.8432 C°



8 0
3 years ago
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What is the equilibrium vapor pressure of a liquid and how is it measured
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8 0
4 years ago
Why are animals so impportant to our lifes
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Explanation:

5 0
2 years ago
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The travel of speed of an electromagnetic wave of 2.8cm wavelength and of 1.1×10^10 Hz frequency is.........
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I might be wrong also you don't have to give me brainliest save it for someone else who knows I might be wrong

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