Describe how ionization energy impacts ionic bonding.

What is the percentage composition of carbon in the compound ch4

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?

State one important difference between a physical change and a chemical change?