Gravity pulls mass towards its center, therefore as matter is pulled towards a source of gravity it will naturally coalesce into a ball as matter competes to head towards the source of gravity.
Answer: S (s) + O2 (g) => SO2 (g)
Explanation: Picture attached.
7 protons. As well as in nitrogen-14. The difference between nitrogen-14 and nitrogen-15 is in a number of neutrons. In nitrogen-14 - 7 neutrons, in nitrogen-15 - 8 neutrons.
Answer: 205000000 microliter
Hope this helps!
Fission reactions generate thermal energy