Answer:
The higher the excitation state, the more energy the electron contains. When an electron absorbs energy, it jumps to a higher orbital. ... An electron in an excited state can release energy and 'fall' to a lower state.
Answer:
Ice is less dense than water.
C) Lower,
They're lower because molecular solids form IMF's such as Dipole-Dipole and H-Bonds, while Ionic bonds are much more powerful.
2. vinegar and baking soda mixing and creating bubbles, if it changes form like bubbles or produces heat then it’s chemical changes.
