Ow much energy is produced when 93.5 grams of oxygen reacts with 13.2 g hydrogen in the following reaction? 2 H2 + O2 → 2 H2O ΔH = -572 kJ

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