Melting requires
a. the removal of energy.
b. the absorption of energy.
c. no energy change.

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

Define dew point. i am writing this part to be able to ask the question

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?