A student measures the mass of a rock to be 20.687 grams. Next, the student fills a graduated cylinder with 15.0 mL of water. When the student adds the rock to the graduated cylinder, the water level rises
to 17.2 mL. What is the density of the rock rounded to three significant figures?

This is a mixture that has the same composition throughout.

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

How to convert a density of 0.791g/cm3 to lb/ft3