Which of the following would best provide evidence to support the theory that Pangaea existed in earth's past ?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2