20 15
Altitude (km)
10
5
0
-60
-50
0
10
20
40-30-20 -10
Temperature (°C)
A student claims that the kinetic energy of water particles decreases as they rise in an air mass. What is evidence that would support the student's claim? We
live in the lowest layer of the atmosphere called the troposphere, this is where weather occurs.
o A Clouds form in the lowest height of the layer of the atmosphere closest to Earth.
B. There are more water particles at the bottom of the layer of the atmosphere closest to Earth.
O
C. The warmest temperatures are at the lowest height in the layer of the atmosphere closest to Earth
D. The temperature of the atmosphere decreases proportionally with height

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

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