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DENIUS [597]
3 years ago
10

When the equation NH3+O2—> HNO3+H2O is completely balanced using smallest whole numbers, the coefficient of O2 would be...

Chemistry
1 answer:
Andru [333]3 years ago
5 0

Answer:

The answer to your question is letter B. 2

Explanation:

Unbalanced reaction

                  NH₃   +   O₂   ⇒     HNO₃   +   H₂O

            Reactants      Elements     Products

                   1                     N                  1

                   3                    H                  3

                   2                    O                 4

Balanced reaction

                   NH₃   +   2O₂   ⇒     HNO₃   +   H₂O

           Reactants      Elements     Products

                   1                     N                  1

                   3                    H                  3

                   4                    O                 4            

When the reaction is completely balanced the coefficient of O₂ is 2

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Propose the structure of the following HNMR data.
Varvara68 [4.7K]

Answer:

1-Chloropropane is likely the answer (attached a picture)

Explanation:

First off there are 3 peaks and 3 carbons which indicates to me that this will be a chain without any symmetry and that each carbon has hydrogens on it.  

Second the triplet at 1.0 that integrates to 3 likely correlates to a CH3 (methyl) group.  Peaks are very upfield triplets that integrate to three are almost always methyl peaks.

Third the triplet at 3.7 is indicative of being next to the halogen.  Hydrocarbons by themselves do not have peaks that far downfield meaning that its shift could only be explained by the chlorine being involved.  Also we know that this can't be next to the methyl group since its multiplicity is to low to be next to it.  

That leaves the multiplet at 1.75 being the hydrogens on the middle carbon which also makes sense since it is more downfield then the methyl group (due to being closer to the chlorine) but is not far enough downfield to say the chlorine is there.  It also makes sense that it is a multiple since it would be a hextet due to the adjacent 5 hydrogens which can't always be resolved.

I hope this helps and let me know if anything is unclear or needs further explanation.

7 0
3 years ago
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Vinvika [58]

Answer:

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3 0
3 years ago
What mass in grams of nitric acid is required to react with 750 g C7H8?
lara31 [8.8K]

Answer:

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Explanation:

5 0
3 years ago
How many moles of atoms are in 5.00 g of 13C
Illusion [34]
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7 0
3 years ago
E)¿Cuántos átomos de oxigeno hay en la molécula de glucosa, al reaccionar 12moleculas de agua?
elena55 [62]

Answer:

12 átomos de oxígeno hay presentes

Explanation:

Basados en la reacción:

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

<em>6 moles de agua producen 1 mol de glucosa</em>

<em />

Si reaccionan 12 moleculas de agua, se producirán:

12 moleculas H₂O * (1 mol C₆H₁₂O₆ / 6 mol H₂O) =

2 moléculas de glucosa se producen.

Como cada molécula de glucosa tiene 6 átomos de oxígeno:

2 moléculas C₆H₁₂O₆ * (6 átomos Oxígeno / 1 molécula C₆H₁₂O₆) =

<h3>12 átomos de oxígeno hay presentes</h3>

6 0
3 years ago
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