I think the answer is A but i'm not sure
The logarithm from my understanding can never be negative. You can check this on a calculator. You may have a negative if it is shown as -(log x).
False. Pb is lower than Al in the reactivity series. It cannot replace aluminium in AlCl3
Answer is True. They can in one lifetime by either humans or natural
Since hydrogen bonding is a stronger intermolecular force than van der Waals forces, more energy is required to separate the molecules of ethanol than the molecules of ethane. Thus ethanol has a higher melting point than ethane.
