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Tutor profile: Jean Z.

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Jean Z.
A mathematics major with specialties in the natural sciences
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Questions

Subject: Organic Chemistry

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Question:

What is the hybridization and bond angles of ammonia $$ ( NH_{3} ) $$

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Jean Z.
Answer:

Ammonia $$ ( NH_{3} ) $$ is $$ sp^3 $$ hybridized and has bond angles of around $$ 107^{\circ} $$, which is slightly less than the ideal bond angle of $$ sp^3 $$ hybridized atoms $$( 109.5^{\circ} )$$ due to the lone pair of unbound electrons on Nitrogen.

Subject: Chemistry

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Question:

Balance the following combustion reaction: $$ C_{3} H_{8} + O_{2} \rightarrow CO_{2} + H_{2} O $$

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Jean Z.
Answer:

$$ C_{3} H_{8} + 5O_{2} \rightarrow 3CO_{2} + 4H_{2} O $$

Subject: Calculus

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Question:

Describe, in words, what is the meaning of the following expression: $$ \frac{d}{dx} e^x = e^x $$

Inactive
Jean Z.
Answer:

The rate of change with respect to $$x$$ of the function $$ e^x $$ is equivalent to the the output of the function $$ e^x $$ at any point $$x $$.

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