Calcium carbonate and copper sulfate are each mixed into a beaker of water. After a few minutes the calcium carbonate settles on the bottom of its beaker, while the copper sulfate stays dissolved. Which statement is true about this experiment? A. Calcium carbonate in water is a solution.
B. Copper sulfate is a solvent.
C. Copper sulfate in water is a solution.
D. Calcium carbonate is a solvent.

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Consider this initial-rate data at a certain temperature for the reaction described by