The traditional method is to heat the compound in an oven, on a hot plate or over a Bunsen burner. Waters of hydration are loosely bound in the compound and can be driven off at temperatures below the melting point of the compound. So the answer is heating.
Answer choice would be D, answer choice B, is the boxes net force. Velocity = distance/time. The correct answer is D. I hope this helps!
The reaction is endothermic as energy is absorbed to break a bond.
liquid to gas intermolecular interaction are broken when liquid is converted to a gas.Example in CH3COOH liquid, dispersion forces, dipole-dipole forces and hydrogen bonding are intermolecular forces that must be overcomed to convert C H3COOH from liquid to gas.