Safety. 1. Drop a paper of A-4 size and a piece of wood/plastic about 2-3 inches long,
rom a height more than 10 feet. Note the time for both to hit the ground. Now repeat
he experiment by folding the paper once, twice, thrice... (as many time as you can).
Vhy every time the travel time reduces for paper and remains the same for
ooden/plastic piece. Does the paper at any stage hit ground before wooden/plastic
ece? If yes, then why?
(3 marks)

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant