How is a metallic compound different from an ionic compound? Select all that apply.

A. Metallic compounds can conduct electricity only in molten form, while ionic compounds can conduct electricity in any form.

B. When hit with a hammer, a metallic compound will change shape, while an ionic compound is likely to break.

C. Metallic compounds form crystal structures, while ionic compounds are often powders or gases.

D. Metallic solids conduct electricity, while ionic solids do not.

B,D

I hope this helps

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole