1)Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? (3 points) Decreasing pressure
Decreasing surface area
Increasing rate of stirring
Increasing temperature

2) Which of the following describes an impact of the specific heat of water on the planet? (3 points)
-Islands and coastal places have moderate pleasant climates.
-Ocean waters experience sudden spikes and drops in temperature.
-The internal temperature of living organisms varies over a wide range.
-Inland places have minimal temperatures changes throughout the year.

The first one is B, "Decreasing surface area."

Explanation:

This is because greater the surface area exposed, the more collisions that occur between the solvent and solute. I also just took the test myself and got it correct.

n2(g) + 3h2-> 2nh3(g)   this is the balanced equation

note the mole ratio between n2, h2 and nh3.   it is 1 : 3 : 2   this will be important.

moles n2 present = 28.0 g n2 x 1 mole n2/28 g = 1 mole n2 present

moles h2 present = 25.0 g h2 x 1 mole h2/2 g = 12.5 moles h2 present

based on mole ratio, n2 is limiting in this situation because there is more than enough h2 but not enough n2.

moles nh3 that can be produced = 1 mole n2 x 2 moles nh3/mole n2 = 2 moles nh3 can be produced

grams of nh3 that can be produced = 2 moles nh3 x 17 g/mole = 34 grams of nh3 can be produced

note:   the key to this problem is recognizing that n2 is limiting, and therefore limits how much nh3 can be produced.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be