Be sure to answer all parts. A jogger runs at an average speed of 4.00mi/h. (a) How fast is she running in m/s ? (Report your answer to the correct number of significant figures.) (b) How many kilometers does she run in 84.0min ? (Report your answer to the correct number of significant figures.) (c) If she starts a run at 11:15 a.m., what time is it after she covers 4.74104ft ? : 45 p.m. Enter your answer in the provided box. Calculate the mass in grams of 1.31101mol of ZnSO4. Enter your answer in the provided box. How many milliliters of 0.341MHCl are needed to react with 68.0g of CaCO3 ? 2HCl(aq)+CaCO3(s)CaCl2(aq)+CO2(g)+H2O(l)