Refer to the example about diatomic gases A and B in the text to do problems 20-28. 22.4 liters of gas B are needed to react with liters of gas A to form liters of product, all measured at the same temperature and pressure.

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