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statuscvo [17]
3 years ago
15

Surface tension explains which of the following

Chemistry
2 answers:
kirza4 [7]3 years ago
8 0
I'm pretty sure the answer is 1. I and III
FromTheMoon [43]3 years ago
4 0
III only. Surface tension caused liquids and in this case water, to bead. The first, sounds like density, and distillation doesn't have anything to do with surface tension.

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Balance this chemical formula<br> Fe + Cl2 = FeCl3
san4es73 [151]
First you find out how much each element has

Fe=1 * 2                    Fe=1
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now we multiply each so we can balance each side.

So now we get our balanced equation
2 Fe + 3 Cl2 = 2 FeCl<span>3</span>
5 0
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Which phase change results with increased kinetic energy?
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3 0
3 years ago
The decomposition of dinitrogen pentoxide, N2O5, to NO2 and O2 is a first-order reaction. At 60°C, the rate constant is 2.8 × 10
Sati [7]

Answer:

a. 113 min

Explanation:

Considering the equilibrium:-

                   2N₂O₅ ⇔ 4NO₂ + O₂

At t = 0        125 kPa

At t = teq     125 - 2x      4x        x

Thus, total pressure = 125 - 2x + 4x + x = 125 - 3x

125 - 3x = 176 kPa

x = 17 kPa

Remaining pressure of N₂O₅ = 125 - 2*17 kPa = 91 kPa

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given that:

The rate constant, k = 2.8\times 10^{-3} min⁻¹

Initial concentration [A_0] = 125 kPa

Final concentration [A_t] = 91 kPa

Time = ?

Applying in the above equation, we get that:-

91=125e^{-2.8\times 10^{-3}\times t}

125e^{-2.8\times \:10^{-3}t}=91

-2.8\times \:10^{-3}t=\ln \left(\frac{91}{125}\right)

t=113\ min

3 0
2 years ago
MC is admitted with pyelonephritis. She has chills, and her temperature is 101 F. She is complaining of flank pain, frequency, a
aleksandr82 [10.1K]

Answer:

i think its B

Explanation:

8 0
3 years ago
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