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-Dominant- [34]

3 years ago

7

would you expect the N-O bond in HNO2 to be longer, shorter, or the same length as the N-O bonds in NO2^-

1 answer:

prohojiy [21]3 years ago

8 0

Longer, this is because the H in HNO2 is bonded with an oxygen, no longer allowing this structure to have a resonance structure.
NO2 on the other hand has one double bond and one single bond, so it has a resonance structure. And resonance structures are actually one structure so there isn't really a single and double bond, it's actually a 1 and 1/2 bond that calls for a higher bond order.
And I higher bond order will result in a shorter lengths!
I hope this helps out!!! And just out of curiosity, is this off of an AP FRQ packet??

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Consider the following equilibrium:

Ainat [17]

<u>Answer: </u>The equation which is wrong is $K_p=K_c(RT)^{-5}$

<u>Explanation:</u>

For the given reaction:

$4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)$

The expression for $K_c\text{ and }K_p$ is given by:

$K_c=\frac{1}{[O_2]^3}$

$K_p=\frac{1}{[O_2]^3}$

The concentration of solids are taken to be 1, only concentration of gases and liquid states are taken. The pressure of only gases are taken.

Relationship between $K_p\text{ and }K_c$ is given by the expression:

$K_p=K_c\times (RT)^{\Delta n_g}$

where,

$\Delta n_g$ = number of moles of gaseous products - number of moles of gaseous reactants

R = gas constant

T= temperature

For the above reaction,

$\Delta n_g$ = number of moles of gaseous products - number of moles of gaseous reactants = 0 - 3 = -3

Hence, the expression for $K_p$ is:

$K_p=K_c\times (RT)^{-3}$

Therefore, the equation which is wrong is $K_p=K_c(RT)^{-5}$

7 0

4 years ago

Which of the following causes a physical change in the shape of an object?

babunello [35]

Answer:

B

Explanation:

Heating a piece of iron until it glows.

3 0

3 years ago

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Alona [7]

Answer:

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Explanation:

8 0

3 years ago

What does water undergo when it turns<br> to gas from liquid on surface of a<br> sidewalk?

Svetradugi [14.3K]

Answer:

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Evaporating - when the air temperature is hotter than the surface of the liquid so the water turns into water vapor or a gas.

Explanation:

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3 years ago

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Andru [333]

Answer:

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Explanation:

The number of protons determines the atomic number. Basically the number of protons is the exact same as the atomic number.

Protons 3 = Atomic number 3

5 0

3 years ago