Ammonia, an important source of fixed nitrogen that can be metabolized by plants, is produced using the haber process in which nitrogen and hydrogen combine. n2(g) + 3h2(g) = 2nh3(g) how many grams of nitrogen are needed to produce 325 grams of ammonia? a.1070 g b.535 g c.267 g d.178 g e.108 g

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