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EastWind [94]
3 years ago
12

Why is chemistry important for the study of living things

Chemistry
2 answers:
erma4kov [3.2K]3 years ago
5 0
If you take chemistry or teach chemistry you will be asked to answer this question it's easy to say chemistry is important because everything is made from chemicals but there are a lot of other reasons 


Marysya12 [62]3 years ago
3 0
It isnt, it is the study of matter. biology is the study of living things.
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Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 2.7 g of ethane is m
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m_{H_2O}=4.86gH_2O

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Hello,

In this case, the described chemical reaction is:

C_2H_6+\frac{7}{2} O_2\rightarrow 2CO_2+3H_2O

Thus, for the given reacting masses, we must identify the limiting reactant for us to determine the maximum mass of water that could be produced, therefore, we proceed to compute the available moles of ethane:

n_{C_2H_6}=2.7gC_2H_6*\frac{1molC_2H_6}{30gC_2H_6} =0.09molC_2H_6

Next, we compute the moles of ethane consumed by 13.0 grams of oxygen by using the 1:7/2 molar ratio between them:

n_{C_2H_6}^{consumed\ by \ O_2}=13.0gO_2*\frac{1molO_2}{32gO_2}*\frac{1molC_2H_6}{\frac{7}{2} molO_2}=0.116molC_2H_6

Thus, we notice there are less available moles of ethane, for that reason, it is the limiting reactant, thereby, the maximum amount of water is computed by considering the 1:3 molar ratio between ethane and water:

m_{H_2O}=0.09molC_2H_6*\frac{3molH_2O}{1molC_2H_6} *\frac{18gH_2O}{1molH_2O} \\\\m_{H_2O}=4.86gH_2O

Best regards.

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3 years ago
What is the value of x in the equation below?
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If the question includes x only than it’s value would be 1
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Read 2 more answers
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