Zero is the freezing temperature of water on which temperature scale? fahrenheit kelvin celsius pascal

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?

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?