What is the difference between benzene and cyclohexene?

How do you calculate the units for Kc?

In the reaction CO(g) + 2H2(g) <--> CH3OH(g), explain why an increase in pressure increases the yield of methanol

How can a student test for the prescence of a halide ion?

State the relative charge and relative mass of a proton, of a neutron and of an electron. In terms of particles, explain the relationship between two isotopes of the same element. Explain why these isotopes have identical chemical properties.