Which equation correctly represents the dissociation of a strong acid in water? Question 26 options:

CH3COOH ↔H++ CH3COO−

NaOH →Na++OH−

HCl →H+ +Cl−

NH3+ H2O↔ NH4++ OH−

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

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?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?