Determine whether an aqueous solution of each of the
following salts has a pH equal to, greater than, or less than 7. If
pH > 7 or pH < 7, write a chemical equation to justify your
answer.

(a) K2C2O4, potassium oxalate;
(b) Ca(NO3)2;
(c) CH3NH3Cl, methylamine hydrochloride;
(d) K3PO4;
(e) FeCl3;
(f) C5H5NHCl, pyridinium chloride.

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

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 theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.