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Sindrei [870]
3 years ago
14

The three end stages of stars are Red Giant Phase, Second Red Giant Phase and White Dwarf Phase correct?

Chemistry
1 answer:
solong [7]3 years ago
6 0

Answer: Most of the stars in the universe are main sequence stars — those converting hydrogen into helium via nuclear fusion. A main sequence star may have a mass between a third to eight times that of the sun and eventually burn through the hydrogen in its core. Over its life, the outward pressure of fusion has balanced against the inward pressure of gravity. Once the fusion stops, gravity takes the lead and compresses the star smaller and tighter.

Temperatures increase with the contraction, eventually reaching levels where helium is able to fuse into carbon. Depending on the mass of the star, the helium burning might be gradual or might begin with an explosive flash.

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3 points
VLD [36.1K]

Answer:

<h3>The answer is 8.29 %</h3>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

actual density = 19.30g/L

error = 20.9 - 19.3 = 1.6

We have

p(\%) =  \frac{1.6}{19.3}  \times 100 \\  = 8.290155440...

We have the final answer as

<h3>8.29 %</h3>

Hope this helps you

5 0
3 years ago
Can someone help me with #35,37,39,41 please
adoni [48]
35 b.
37 h
39 i
41 d
hope that helps
4 0
3 years ago
Plz help!!!!!!!!!!!!!!
Karo-lina-s [1.5K]
I think it’s d
If it’s wrong then I’m sorry
5 0
3 years ago
Read 2 more answers
How many joules of heat are absorbed to raise the temperature of 435 grams of water at 1 atm from 25°C to its boiling point, 100
zepelin [54]
The energy absorbed may be calculated using:
Q = mcΔT
Where Q is the energy absorbed, m is the mass of water, c is the specific heat capacity of the water and ΔT is the change is the temperature of the water. Substituting the values,
Q = (435)(4.18)(100-25)
Q = 136,372 J

The energy absorbed is 136.4 kJ
7 0
3 years ago
Which event best helped Becquerel determine uranium radiates rays?
Elenna [48]
(D) exposure of a photographic plate
5 0
3 years ago
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