A compound has an empirical formula of CH,0. What is its molecular formula, if its
molecular mass is 90 g/mol?
(C=12.01 amu, H=1.008 amu, O=16.00 amu)

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3