The distance the sprinter ran is given in meters and the time is given in seconds. convert meters to kilometers and seconds to hours and divide the distance by the time to calculate the average speed.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.