Which statement about weak bonds is correct? weak bonds are less important to living things than strong covalent bonds. weak chemical bonds form only between atoms of similar electronegativity. weak bonds are transient and easily reversible.

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?