What is the formula for potassium sulfide?
a. k2s2
b. k2s
c. ks
d. ks2

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.