Which of following increases the average kinetic energy of particles?

Find the mass, in grams, of 5.00*10^23 molecules of f2

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2

Plz a person walks 1 mile every day for exercise, leaving her front porch at 9 am and returning to her front porch at 9: 25 am what was the total displacement of her daily walk a. 1 mile b. 0 c. 25 min d. none of the above