Excitation and relaxation of electrons in what element are responsible for most of the light reaching earth from the sun? a) argon b) helium c) hydrogen d) iron

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

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

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.