What chemical substance is the opposite of a base?

More Questions:

A pub that is required to sell beer primarily from a single brewery is typically referred to as what?

Who created the fictional character Tristram Shandy?

Who wrote the novel "Lolita"?

Who wrote the novel "Great Expectations"?

Prague is the capital of which country?

One of the Midwest's "Quad Cities" is named for what three-mile-long island in the Mississippi?

What is the scientific name for the North Star?

How many episodes of the TV show "All in the Family" were made?

What is Merlin's owl name in Disney's film "The Sword in the Stone"?

Which "Family Guy" character war married to Loretta?

In what decade did Dr. Christiaan Barnard perform the first successful human heart transplant?

Where did Al Capone spend the majority of his 1931 sentence for tax evasion?

What nation has had its own scandals dubbed "Muldergate" and "Inkathagate"?

Quinsy is the inflammation of which body organ due to abscess?

What beverage company distributed the 2012 3D animated short film "The Polar Bears"?