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Leni [432]
3 years ago
15

4. What coefficients need to be added to the following chemical reaction

Chemistry
1 answer:
KengaRu [80]3 years ago
6 0

Hey there!

C₆H₁₄ + O₂ → CO₂ + H₂O

Balance H.

14 on the right, 2 on the left. Add a coefficient of 7 in front of H₂O.

C₆H₁₄ + O₂ → CO₂ + 7H₂O

Balance C.

6 on the left, 1 on the right. Add a coefficient of 6 in front of CO₂.

C₆H₁₄ + O₂ → 6CO₂ + 7H₂O

Balance O.

2 on the left, 12 on the right. Add a coefficient of 6 in front of O₂.

C₆H₁₄ + 6O₂ → 6CO₂ + 7H₂O

Our final balanced equation: C₆H₁₄ + 6O₂ → 6CO₂ + 7H₂O

Hope this helps!

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The temperature in a town started out at 55 degrees. By the end of the day the temperature dropped to -6 degrees.
garik1379 [7]

Answer:

The choice of the answer is fourth option that is -61 degrees.

Therefore the temperature drop is -61°Centigrade.

Explanation:

Given:

The temperature in a town started out at 55 degrees

Start temperature = 55°Centigrade. (Initial temperature)

End of the Day      = -6°Centigrade. (Final temperature)

To Find:

How far did the temperature drop?

Solution:

We will have,

\textrm{Temperature drop}=\textrm{Final temperature}-\textrm{Initial temperature}

Substituting the above values in it we get

\textrm{Temperature drop}=-6-55\\\\\therefore \textrm{Temperature drop}=-61\° centigrade

Therefore the temperature drop is -61°Centigrade.

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Conociendo el volumen de solución, masa de soluto y su masa molar, es posible determinar: B) Concentración molar

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M = No moles de solución de soluto / volumen (L)

Y a su vez los moles de soluto se encuentran por:

No moles de soluto = masa soluto / masa molar soluto

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