What is the charge on an ion that contains 27 protons, 32 neutrons, and 24 electrons?
Which of the following elements are spelled incorrectly? (There may be more than one).
Identify each of the following compounds as ionic or molecular.
Match the following formulas to the correct type of bonding: ionic or covalent.
For the bonds listed below, choose the one in which the highlighted atom is the partially positive end of the bond. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
From the bonds listed below, choose the one that is the most polar. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
For which of the following substances will strong hydrogen bonds form between the molecules? (You may select more than one.)
The reaction CaCO3(s) + 2HCl(aq) CaCl2(aq) + CO2(g) +H2O(l) is an example of a(n)....
acid carbonate reaction
Predict the product(s) of the following double displacement reaction carried out in aqueous solution:
Pb(NO3)2(aq) + K2CrO4(aq)
Pb + 5O2 + N2 + 2K + Cr
PbKNO3 + CrO4
PbCrO4 + 2KNO3