What is the purpose of a buffer?

a. increase the pH of a solution

b. decrease the pH of a solution

c. resist changes in pH

d. procedure used to determine pH of solution

Both picric acid and tannic acid are used in the treatment of burns, Why?

Which of the following statements is not true of the phases of a given substance? A. The particles of gases have more kinetic energy than the particles of liquids or solids. B. The particles of a solid vibrate. C.

The half-life of a material increases with the amount of material present. a. True b. False

Describe the reproductive cycle of bread mold

Solve 8 = 2x + 4. x = - 4 x = - 1 x = 0 x = 7

Which orbital notation represents a noble gas in the ground state

c. When we heat water up by the Bunsen burner, what temperature is the boiling water? After 10 minutes

Assuming that air contains 78 percent N2, 21 percent O2 and 1 percent Ar, all by volume. How many molecules of each type of gas are present in 1.0 L of air at STP?

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase