12. A rock has a density of 4.0 g/cubic cm and masses out at 32 grams. When this rock is placed in 16.5 mL of water, what will the new water level be?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

In a chemical reaction, the final amount of the products is determined by the a. universal gas law b. law of definite proportions c. air pressure d. temperature e. none of the above me

How can a mixture of salt water be separated into salt and water