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TiliK225 [7]
3 years ago
14

Gopher tortoises live on dry land. They live in large holes that they dig in the soil. Which statement gives the best explanatio

n of how this behavior aids in soil formation?
A. It hardens the soil, allowing less water to reach the rocks underground.

B. It causes weathering of the rocks, as the tortoise breaks the rocks into smaller pieces.

C. It causes weathering of the rocks, as the tortoise breaks the rocks into smaller pieces.

D. It loosens and mixes the soil, increasing air in the soil and the ability to drain water.​
Chemistry
2 answers:
TEA [102]3 years ago
7 0
D. It loosens and mixes the soil, increasing air in the soil and the ability to drain water.
sergeinik [125]3 years ago
6 0

Answer:

It moves rocks above ground, where they are exposed to more water and wind.

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Go'=30.5 kJ/mol
makvit [3.9K]

Answer:

a) Keq = 4.5x10^-6

b) [oxaloacetate] = 9x10^-9 M

c) 23 oxaloacetate molecules

Explanation:

a) In the standard state we have to:

ΔGo = -R*T*ln(Keq) (eq.1)

ΔGo = 30.5 kJ/moles = 30500 J/moles

R = 8.314 J*K^-1*moles^-1

Clearing Keq:

Keq = e^(ΔGo/-R*T) = e^(30500/(-8.314*298)) = 4.5x10^-6

b) Keq = ([oxaloacetate]*[NADH])/([L-malate]*[NAD+])

4.5x10^-6 = ([oxaloacetate]/(0.20*10)

Clearing [oxaloacetate]:

[oxaloacetate] = 9x10^-9 M

c) the radius of the mitochondria is equal to:

r = 10^-5 dm

The volume of the mitochondria is:

V = (4/3)*pi*r^3 = (4/3)*pi*(10^-15)^3 = 4.18x10^-42 L

1 L of mitochondria contains 9x10^-9 M of oxaloacetate

Thus, 4.18x10^-42 L of mitochondria contains:

molecules of oxaloacetate = 4.18x10^-42 * 9x10^-9 * 6.023x10^23 = 2.27x10^-26 = 23 oxaloacetate molecules

3 0
4 years ago
Which of these is a compound <br><br> A) O<br><br> B)CO2<br><br> C)O2<br><br> D)Co
faust18 [17]

Answer:B. CO2

Explanation: It is B because it has both letters capitalized if it  is a compound and it only has 1 letter capitalized if it is an element.

8 0
3 years ago
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Which statement concerning ecosystems is correct?
professor190 [17]

Answer:

I think A...

Explanation:

3 0
4 years ago
Convert 3.45 g/ml to lb/in^3
Alja [10]
<span>The answer is 

0.124639157 pounds.

I converted it. </span><span />
5 0
3 years ago
How many moles are there in 2.00 x 1023 molecules of LiOH?​
Tanya [424]

Answer:

Moles de LiOH= 0.33212 Moles

Explanation:

1 Mol of LiOH -->6.022*10^23 molecules of LiOH

therefore

2*10^{23}~molecules ~of~LiOH=\frac{2*10^{23}}{6.02*10^{23}}Moles~of#LiOH

5 0
3 years ago
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