Sarahwinters668 Sarahwinters668 13-02-2017 Physics contestada Question 3 of 15 Multiple Choice: Please select the best answer and click "submit." Which one of the following is an example of an acid-base reaction? A. S8 + 8O2 → 8SO2 B. HCl + KOH → H2O + KCl C. C3H8 + 5O2 → 3CO2 + 4H2O D. 2CuS + 3O2 → 2CuO + 2SO2