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neonofarm [45]
2 years ago
12

The atomic number of Oxygen is 8. Therefore, which of the following answers would correspond to what would be in the nucleus of

an oxygen atom
Chemistry
1 answer:
melomori [17]2 years ago
5 0

Answer:

Its official chemical symbol is O, and its atomic number is 8, which means that an oxygen atom has eight protons in its nucleus. ... Oxygen is normally found as a

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The reaction of C4H8 and Br2 to yield C4H2Br2 represents​
natima [27]

Answer:

A Synthesis Reaction

Explanation:

A + B --> AB

8 0
4 years ago
Consider the equilibrium
vladimir1956 [14]

Answer:

Kp^{1000K}=0.141\\Kp^{298.15K}=2.01x10^{-18}

\Delta _rG=1.01x10^5J/mol

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

C_2H_6(g)\rightleftharpoons H_2(g)+C_2H_4(g)

Thus, Kp for this reaction is computed based on the given molar fractions and the total pressure at equilibrium, as shown below:

p_{C_2H_6}^{EQ}=2bar*0.592=1.184bar\\p_{C_2H_4}^{EQ}=2bar*0.204=0.408bar\\p_{H_2}^{EQ}=2bar*0.204=0.408bar

Kp=\frac{p_{C_2H_4}^{EQ}p_{H_2}^{EQ}}{p_{C_2H_6}^{EQ}}=\frac{(0.408)(0.408)}{1.184}=0.141

Now, by using the Van't Hoff equation one computes the equilibrium constant at 298.15K assuming the enthalpy of reaction remains constant:

Ln(Kp^{298.15K})=Ln(Kp^{1000K})-\frac{\Delta _rH}{R}*(\frac{1}{298.15K}-\frac{1}{1000K} )\\\\Ln(Kp^{298.15K})=Ln(0.141)-\frac{137000J/mol}{8.314J/mol*K} *(\frac{1}{298.15K}-\frac{1}{1000K} )\\\\Ln(Kp^{298.15K})=-40.749\\\\Kp^{298.15K}=exp(-40.749)=2.01x10^{-18}

Finally, the Gibbs free energy for the reaction at 298.15K is:

\Delta _rG=-RTln(Kp^{298.15K})=8.314J/mol*K*298.15K*ln(2.01x10^{-18})\\\Delta _rG=1.01x10^5J/mol

Best regards.

3 0
4 years ago
Scientists have found strange new life-forms called “tubeworms” on the deep ocean bottom. Which most likely provides energy for
Contact [7]
<span>hydrothermal vents can be one the energy soruces for them</span>
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4 years ago
Water is a polar solvent. Which of the following will not dissolve in water? (3 points) 3Points A sugar B table salt C vinegar D
jekas [21]

The answer is D Olive Oil

Due to water being a polar substance, and olive oil is a non-polar substance. They will not mix, the olive oil will sink to the bottom of the water and not dissolve.

5 0
3 years ago
Read 2 more answers
What is mechanical advantage?
egoroff_w [7]

Answer:

i think its letter d

3 0
3 years ago
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