Part a a sample of a compound is decomposed in the laboratory and produces 330 g carbon, 69.5 g hydrogen, and 440.4 g oxygen. calculate the empirical formula of the compound. express your answer as an empirical formula.

Arock can be broken down into different kinds of substances by physical processes. no chemical reactions are needed to separate different parts of a rock into pure substances. this is because a rock is a(n)

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?