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KIM [24]
3 years ago
9

A student wants to know why sandhill crane‘s fly south for the winter. The student uses a map of North America to make a model o

f the paths sandhill cranes take as they migrate. The student draws lines with arrows to show the routes sandhill cranes are known to take. Which two issues describe limitations of the students models?
Chemistry
2 answers:
Luba_88 [7]3 years ago
8 0

Answer: It does not explain why the cranes fly south

It does not show when the cranes arrive at each location

Explanation:

It was on a quiz

Ratling [72]3 years ago
7 0

Answer:

a and c

Explanation:

im probably wrong  though

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Assertion (A): An orbital cannot have more than two electrons, moreover, if an orbital has two electrons they must have opposite
VMariaS [17]

Answer: Its option "A" Both A and R are true and R is the correct explanation of A.

Hope it helps

7 0
3 years ago
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A molecule of glucose is comprised of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen.
Tcecarenko [31]
B i just did the test
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What chemical bond will S and H form
Over [174]

Answer:

hydrogen sulfide (H2S)

Explanation:

8 0
3 years ago
The entropy change for a real, irreversible process is equal to:______.
taurus [48]

Answer:

The entropy change for a real, irreversible process is equal to <u>zero.</u>

The correct option is<u> 'c'.</u>

Explanation:

<u>Lets look around all the given options -:</u>

(a)  the entropy change for a theoretical reversible process with the same initial and final states , since the entropy change is equal and opposite in reversible process , thus this option in not correct.

(b) equal to the entropy change for the same process performed reversibly ONLY if the process can be reversed at all. Since , the change is same as well as opposite too . Therefore , this statement is also not true .

(c) zero. This option is true because We generate more entropy in an irreversible process. Because no heat moves into or out of the surroundings during the procedure, the entropy change of the surroundings is zero.

(d) impossible to tell. This option is invalid , thus incorrect .

<u>Hence , the correct option is 'c' that is zero.</u>

8 0
3 years ago
On a cool morning (12"C), a balloon is filled with 1.5 L of helium. By mid afternoon, the temperature has soared to 32°C. What i
ddd [48]

Answer:

1.6 L

Explanation:

Using Charle's law  

\frac {V_1}{T_1}=\frac {V_2}{T_2}

Given ,  

V₁ = 1.5 L

V₂ = ?

T₁ = 12 °C

T₂ = 32 °C  

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (12 + 273.15) K = 285.15 K  

T₂ = (32 + 273.15) K = 305.15 K  

Using above equation as:

\frac{1.5}{285.15}=\frac{V_2}{305.15}

V_2=\frac{1.5\cdot \:305.15}{285.15}

New volume = 1.6 L

8 0
3 years ago
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