How did mossely esablish a more accurate periodic table

What is the oxidation state of each individual carbon atom in c2o42−?

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.

Aseismic wave is energy released as the result of rock movement along a fault. t or f ?