Which of these compounds has the largest percentage by mass of nitrogen? NO N2O NO2 N2O3

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?

Displacement is the slope of a velocity vs. time graph a. true b. false

How many moles of oxygen react with 12 moles of aluminum