What coefficient for O2 demonstrates the law of conservation of mass? CH (9) + _02(g) → CO2(g) + 2H2O(g)

What is a difference between a mixture of elements and a mixture of compounds

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.