Past Perfect. ed makes it perfect and past
Answer:b
Explanation:is the answer it sounds more right
Answer:
In chemistry, there are three definitions in common use of the word base, known as Arrhenius bases, Brønsted bases and Lewis bases. All definitions agree that bases are substances which react with acids as originally proposed by G.-F. Rouelle in the mid-18th century
Answer:
I could be wrong but wouldn't it be all of the sentences suggested?
Explanation: