What is the base metric unit for measuring volume

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Is powdered sports drink ionic or covalent ? 10pts !

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?