Which two of these are chemical reactions? tick two boxes.
you
dissolve a spoonful of sugar in water.
bread goes
brown in the toaster.
you take an
ice lolly out of the freezer and it strats to melt.
frost forms on
the grass an a cold night.
you strike a
match to light a bunsen burner.

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.