Why is water an excellent solvent for most ionic compounds and polar covalent molecules but not for non-polar compounds?
a) water is a polar molecule.
b) water has a charge like an ion.
c) water is a deionizing substance.
d) water molecules have an unusually high kinetic energy in the liquid state.

What is the chemical formula of the following compound

What is the number of atoms in 3.54 mol s

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.