Will give brainlest PLEASE HELP Determine the empirical formula of a compound containing 47.37 grams of carbon, 10.59 grams of hydrogen, and 42.04 grams of oxygen.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

1. list three scientific reasons cockroaches may fly.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.