When aniline is treated with molecular bromine in the presence of a mild base (NaHCO3), polyhalogenation occurs. However, when aniline is treated with molecular bromine in the presence of a strong Lewis Acid like FeBr3, no reaction takes place. Briefly explain this difference in reactivity.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Type the correct answer in the box. spell all words correctly.what is the correct term for living the most sustainable life you can within your current circumstances? when your are being as sustainable as you can within your current lifestyle, you are said to be sustainability.

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?