What is the percent by mass of magnesium sulfate in mgso4 · 7h2o?

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

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.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?