Onic compounds can conduct electricity when dissolved in water or melted, because a. they have no ions to contribute to the solution. b. the ions are fixed in place. c. the ions are free to move. d. they have shared electrons.

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of