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g100num [7]
3 years ago
15

A student wants to do scientific research on how aquatic plants in lakes have changed over time. What field of science does this

research mostly involve?

Chemistry
1 answer:
Mice21 [21]3 years ago
5 0

Answer:

The right field is oceanography

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By stoichiometry and assume that:

CxH2xOy + zO2 -> xCO2 + xH2O 

<span>
CO2: 9.48/44 = 0.215 mmol 
H2O: 3.87/18 = 0.215 mmol 
mass of C = 0.215 * 12 = 2.58 mg 
mass of H = 0.215 * 2 * 1 = 0.43 mg 
mass of O in ethylbutyrate = 4.17 - 2.58 - 0.43 = 1.11 mg 
So C/O = 2.58/1.11 ≈ 3 </span>

<span>
Thus we have C3H6O</span>

<span> </span>

8 0
3 years ago
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A redox reaction --> a reaction whereby oxidation & reduction occurs
Reduction: 
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Charge of Na+ in NaCl = +1
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Since both oxidation & reduction occured in the reaction, it is a redox reaction.  
3 0
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Over the last several decades, scientists have addressed the problem of nonrenewable natural resources such as fossil fuels. Hum
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6 0
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Answer:

Explanation:

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