Which of the following statements is true?

a. Q does not change with temperature.
b. Keq does not change with temperature, whereas Q is temperature dependent.
c. K does not depend on the concentrations or partial pressures of reaction components.
d. Q does not depend on the concentrations or partial pressures of reaction components.
e. Q is the same as Keq when a reaction is at equilibrium.

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution. calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

What happens to the temperature of a substance when the average kinetic energy of its particles increases?