Please some one hel! write the following word equation in to formula equation.
A. sulphur+oxygen=sulfur dioxide B. Aluminum +oxygen=aluminum oxide C. calcium+oxygen=calcium oxide D. sodium+chlorine=sodium chloride E. potassium+oxygen=potassium oxide

A) 2SO2 + O2 = 2SO3

B) Al2O3 + O2 = Al2O3

C) Ca + O2 = CaO2

D) Na (s) + Cl2 (g) = NaCl (s)

E) K + O2 = K2O2

brainliest please

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