Answer:
The average atomic mass of oxygen is 15.999u
At a constant temperature and pressure, liquids retain their volume
Answer:
The outer shell of the new star will start to expand.
Explanation:
The new star will continue to glow for millions or even billions of years. As it glows, hydrogen is converted into helium in the core by nuclear fusion. The core starts to become unstable and it starts to contract. The outer shell of the star, which is still mostly hydrogen, starts to expand.
Explanation provided by:
StarChild: Stars - NASA
Answer:
I think its the length of its year
