Answer:Phase changes require either the addition of heat energy (melting, evaporation, and sublimation) or subtraction of heat energy (condensation and freezing). ... Changing the amount of heat energy usually causes a temperature change.
Explanation:
The brackets are indicating a(n) __Hydrogen___ bond.
1. Hydrogen
Answer:
The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds.
Answer:
Energy levels tell us how many <u>electrons </u>there are in an atom.
Hope this helps!
Force = mass * acceleration
= 14 * 2 = 28N
Work done (energy) = Force * distance
= 28 * 5 = 140J
