Enable contrast version

# Tutor profile: Melody W.

Inactive
Melody W.
Molecular and Cell Biology and Pharmacy Student
Tutor Satisfaction Guarantee

## Questions

### Subject:Chemistry

TutorMe
Question:

What is a reducing agent and how does it differ from a oxidizing agent?

Inactive
Melody W.

A reducing agent is a substance that causes reduction by losing its electrons and therefore it becomes more oxidized (more positive). In contrast, a oxidizing agent is a substance that causes oxidation by gaining electrons and becomes more reduced (more negative). Remember that a reducing agent is NOT reduced and an oxidizing agent is NOT oxidized.

### Subject:Biology

TutorMe
Question:

Identify the four elements that make up 96% of living matter?

Inactive
Melody W.

These elements would be carbon, hydrogen, oxygen, and nitrogen. A great way to remember this is to use CHON, a mnemonic.

### Subject:Calculus

TutorMe
Question:

If f(x) = -x^3 + 3x, what is the derivative, f'(x)?

Inactive
Melody W.

Taking f(x) = -x^3 + 3x, in order to get the derivative, we would bring down the exponent of 3 and subtract 1 from that exponent to give -3x^2. For the 3x in the original equation we would simply do the same, however, the exponent here is 1. We would again bring down the 1 and multiply it by the 3 in front of the x to give us 3. We would then subtract 1-1 for the exponent and that would give us 0 and x^0 is equal to 1. This would result in a final answer of f'(x) = -3x^2 + 3.

## Contact tutor

Send a message explaining your
needs and Melody will reply soon.
Contact Melody

Start Lesson

## FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.
BEST IN CLASS SINCE 2015
TutorMe homepage