Together, nitrogen (n2) and oxygen (o2) by volume account for % of the gases composing the dry air in the lower atmosphere (below an altitude of 80 km).

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature

If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the representation of the reaction?

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus