Which statement is true of pure substances? They can contain different types of atoms and molecules. They may contain one type of atom or one type of molecule. They can only contain one type of molecule. They can only contain one type of atom

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

elements make up everything, and they combine to make compounds.

the answer is c