Which of the following is the most reasonable explanation for a drop in temperature of gas?

a) a decrease in the volume of the container
b) a decrease in the average kinetic energy of the gas particles
c)an increase in the average potential energy of the gas particles
d) an increase in gas pressure

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

What is the molar mass of a gas that has density of 2.054 g/l

Which subshell is represented by the actinides family?