PLZ ANSWER IF U KNO THE ANSWER Given the reaction at equilibrium:
2SO2 (g) + O2 (g) <=> 2SO3 (g) + 44 Kcal
Which change will increase the concentration of SO3 (g) ?
Select one:
a. increasing the temperature
b. increasing the concentration of O2 (g)
c. increasing the volume of the reaction vessel
d. decreasing the pressure
e. decreasing the concentration of SO2 (g)

Idon’t know how to solve this question

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.