Sarah is pushing a box down the hall. Sarah has used 30j of work in 10s. a. 3W
b. 5W
c. 20W
d. 1W

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

How do scientists think that gravity affected the formation of our solar system?

Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)