Ahuman lung at maximum capacity has a volume of 3.0 liters. if the partial pressure of oxygen in the air is 21.1 kilopascals and the air temperature is 295 k, how many moles of oxygen are in the lung?

a.
0.026 mol
b.
0.12 mol
c.
2.6 mol
d.
13 mol

Why does his teacher ask him to balance the equation by including the correct coefficient

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next