An acetate buffer solution is prepared by combining 50 ml of .20 m acetic acid and 50 ml of .20 m sodium acetate. a 5 ml sample of .10 m naoh is added to the buffer solution which of the following is a correct pairing of the acetate species present in greater concentration and of the ph of the solution after the naoh is added?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

What must happen before a body cell can begin mitotic cell division

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?