When elections are between two atoms, a covalent bond is formed

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?

Is powdered sports drink ionic or covalent ? 10pts !

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.