i need a quick answer

A compound has the following percent composition. C. 40% H:6,67%, 0:53 3%. Its molecular weight is 60. Derive its molecular formula. (C 12 g/mol, H: 1.008 g/mol,0:16 g/mol) O a C2H402 O b. C2H602 Oc C4H120 O d. C3H60 O e C3H805 What is the density of an object with a mass of 149.8 g and a volume of 121 ml? O a. 138 g/L Ob 22.8 g/mL O c. 8.08 g/mL O d. 12.4 g/mL O.. 18.19/mL. What mass of 2ncl2 can be prepared from the reaction of 3 27 grams of zinc with 3 30 grams of HonZn +2HCl (arrw-tan alt ZnCl2 + Haze: 65 g/moleci 355 g/mole 0.8 6 490 O b. 6020 0.6.460