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katrin [286]
3 years ago
14

If you have 66 pencils, how many dozen do you have

Chemistry
1 answer:
Marta_Voda [28]3 years ago
3 0

Answer:

5.5

Explanation:

You have to do 66 divided by 12 and you get that and if you want the proof then here it is...

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The Wolff-Kishner reaction involves the reaction of an aldehyde/ketone with hydrazine in the presence of KOH. The process is use
Ivan

Answer:

in the attached image is the reaction mechanism.

Explanation:

The first reaction (reaction 1) shown in the attached image is the Wolff-Kishner reduction, which is characterized when the carbonyl is reduced to an alkane in the presence of a hydrazine and a base. In reaction 1, the aldehyde reacts with hydrazine to produce oxime. This mechanism begins with the attack of the amine on the carbonyl group. Proton exchange happens and the water leaves the molecule.

In reaction 2, the KOH is deprotoned in nitrogen and organized to form the bond between the nitrogen molecule. this deprotonation releases the nitrogen gas

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3 years ago
Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incinera
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Answer:

1.40 atm

Explanation:

To answer this question we can use<em> Gay-Lussac's law</em>, which states:

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We <u>put the known data in the equation and solve for P₂</u>:

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3 years ago
This is Q7 and I need help, can someone help.
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Answer:

Answer to A. helium, neon, argon, krypton, xenon, and radon, B. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2). C. Elements Compounds

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Rn (radon) H 2S (hydrogen sulfide) CO 2 (carbon dioxide)

Explanation:

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C. the rock may have diferrent textures 

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Please draw the resonance structure for this compound indicating formal charges and lone pairs
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Here are the resonance contributors I found.

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