If I'm correct the answer should be a series circuit :) Hopefully this helps you out
I would say the answer is P2O5. Some teachers use PO2.5. I'm not one of them.
Acting as a reference point for detecting motion
Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule.