A bond is rarely just ionic or covalent. Rather, bonds are described as having "ionic character" or "covalent character." Discuss how differences in electronegativity contribute to this description

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

what does the table look like