PLEASE HEL I’ll GIVE YOU THE MARK These shells were used by organisms when they were alive. Choose which of Earth's spheres (geosphere,
atmosphere, hydrosphere, biosphere) that they are part of in the form pictured here, and explain your
thinking

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.

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted