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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

TutorMe
Question:

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

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Jean Z.

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.

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

### Subject:Calculus

TutorMe
Question:

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

Inactive
Jean Z.

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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