If a chemical is "anhydrous", what does it not contain?

More Questions:

What Clorox "formula" was named in honor of its inventor's birthday, April 9?

What is the name of Twitter's blue bird mascot?

In which river did the Pied Piper drown the rats of Hamelin?

What author's headstone includes the phrase "Quoth the Raven, Nevermore"?

Who created the character of Paddington?

What duo composed the operetta "Porgy and Bess"?

How many stars appear on the Australian flag?

In what US city can tourists visit the Space Needle?

What is the official name of New York's Sixth Avenue?

Who sang the title theme of the James Bond film "A View to a Kill"?

Randy Poffo, who was a pitchman for Slim Jim and appeared in 2002 film "Spider-Man', was better known by what name?

What is Ace Frehley’s persona name in the band KISS?

What 2 coaches on The Voice first appeared in season 4 and returned for season 6?

'Antonine Plague" was also known by what other name?

The city known as Hot Coffee is located in what US state?