According to Bohr, the electrons in an atom were only allowed to exist at certain energy levels. ... Just as children cannot hover between two steps on a staircase, Bohr suggested that electrons cannot hover between two energy levels in the atom. Bohr developed his energy level model further using principles from physic
Answer: A Bronsted-Lowry acid is defined as a substance that acts as a proton donor.
Explanation:
A substance that is able to donate a proton or hydrogen ion to another substance is a Bronsted-Lowry acid.
For example, HCl is a Bronsted-Lowry acid as it dissociates to give a hydrogen ion.

Thus, we can conclude that a Bronsted-Lowry acid is defined as a substance that acts as a proton donor.
Feet would be the best unit to use. Yards would work as well though.
Hope that helps!
Answer:
molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled.
Explanation:
Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.