useless trivia: What Word Means: Any Of A Group Of Levorotatory Polysaccharides?

Questions

When two words are combined to form a single word (e.g., Motor + hotel = motel, breakfast + lunch = brunch) what is the new word called?

When using a telephone, you must wait for a ____ tone before starting your call?

When was Braille printing invented?

When was chewing gum patented?

When was Clinton first elected president of the U S?