Propose a mechanism for the formation of Aniline Purple, first synthesized by Perkins

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?