Do you think it is common for chemists to get 100% yields for chemical reactions? why or why not?

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

What is the polyatamic ion of thiosulfate

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?