What is the oxidation number of cesium in Cs2Cr2O7

What is the relation between concentration of reactants and the rate of chemical reaction?

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.