The characteristics of two different types of reactions are shown below: reaction a: protons are gained or lost by the atom of an element. reaction b: electrons are lost by the atoms of an element. which statement is true about the two reactions?

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.