A candle burns for 5 minutes under a can of water containing 150 grams of water at 20C. After 5 minutes, the final temperature of the water is 90 C? How many Joules of energy did the water gain?

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?