What is the number of moles in 75 g of dinitrogen trioxide

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

How far is the region from the equator or control climate

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?