sodium hydroxide reacts with excess hydrochloric acid. calculate the mass of sodium hydroxide required to produce 117g of sodium chloride

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

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?

Which diagram represents the phase tha occurs after a solid melts?