oxyacid

"Professor Davies is a learned scholar, renowned for her deep knowledge of ancient history. "

"The meaning of the teacher's hand gesture was clear: "Pay attention." "

"There is still time to oppose this plan."

"We need oxygen to breathe. "

"The box containing my old toys was stored in the attic. "

"Often used to imply membership of a large class."

"The chemistry class focused on how different elements combine to form new substances. "

"The box contains my old toys. "

"The lemon juice has a strong acid taste. "

"By now, you must surely know which is which."

"The lab technician carefully neutralized the spilled sulfuric acid with a base. "

"My sister's approach to studying, unlike mine, is to focus on detailed notes. "