Which describes the heliocentric model of the solar system? (1 point) A. a model in which Earth is at the center of the solar system

B. a model in which Venus is at the center of the solar system

C. a model in which Mars is at the center of the solar system

D. a model in which the Sun is at the center of the solar system

2. how is heavy water different from normal water

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.

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)