Hydrogen, helium, and carbon.
A covalent bond is between two nonmetals. An ionic bond is between a metal and a nonmetal. Potassium is a metal and iodine is a nonmetal, so their bond would most likely be ionic.
They go in the boxes in this order:
density
2.meter
3.matter
4.hypothesis
5.control
6.kilogram
I believe it is “runs on parallel circuits”! my bad if incorrect
Answer:
Sagittarius A
Explanation:
The center of the milky way has a big giant hole known as "Sagittarius A". The size is 4 million times bigger than the sun.
