In a water molecule, the oxygen atom and hydrogen atoms share electrons in covalent bonds, but the sharing is not equal. In the covalent bond between oxygen and hydrogen, the oxygen atom attracts electrons a bit more strongly than the hydrogen atoms.
Hope that helped
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
The answer is red for the highest surface temp of a star.
Chromosomes. Hope this helps.
