Gunpowder is a formulation of potassium nitrate, charcoal and sulphur in the ratio 15 : 3 : 2 What is meant by the term “formulation” [2]
Calculate the mass of charcoal in 40g of gunpowder [1]

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.