Why is it important to conduct more than one trial during a scientific investigation?

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Displacement is the slope of a velocity vs. time graph a. true b. false