Aweak triprotic acid, hsz has the following ka values: 1.4 x 10 к. pca- 3.85 write the nie associated with each ka value. 6. k= 9.7 x 107 pta : 601 k=5.3 x 109 8.a3
a. h32 +hz0 0 h22 30 h22 +h22 +hz0 h22- +i170 3-
b. of the four weak acid species: h, z, h,

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 is the standard unit of measure for acceleration?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.