What is the volume of a sample of liquid mercury that has a mass 76.5g given that the density of mercury is 13.6g/ml

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

2. how is heavy water different from normal water

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion