An organic compound is made up of 0.72g of carbon, 0.16g of hydrogen and 0.64g of oxygen. Calculate the emperical formula of the compound (c=12, h=1, o=16)

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

What percentage of energy used in the u.s is produced from fossil fuels

Which question could be best answered using the process of scientific inquiry? do different plates have different rock compositions? why did it take so long to develop the theory of plate tectonics? what are different cultural myths caused by plate tectonics? do plates move intentionally to cause volcanic eruptions?