Subjects
PRICING
COURSES
SIGN IN
Start Free Trial
Prerona D.
CRLA Certified Tutor: Mathematics, General Chemistry, Biology and English.
Tutor Satisfaction Guarantee
Chemistry
TutorMe
Question:

Complete the redox reaction, and mention the oxidizing and reducing agent: Cu (s) + 2 AgNO3 (aq) -> __________________

Prerona D.
Answer:

Cu (s) + 2 AgNO3 (aq) -> 2 Ag (s) + Cu(NO3)2 (aq) Cu is oxidized because its oxidation number increases from 0 to +2. Ag is reduced because its oxidation number decreases from +1 to 0. Cu is, therefore, the reducing agent because it itself is oxidized. Ag is the oxidizing agent because it itself is reduced.

Biology
TutorMe
Question:

Describe the series of blood circulation in the heart (including names of the blood vessels and structures of the heart).

Prerona D.
Answer:

The left ventricle is more muscular than the right ventricle because it has to pump blood with higher pressure to travel a longer distance than the right ventricle does. The right ventricle pumps blood to the lungs, whereas the left ventricle pumps blood to the rest of the body. When the left ventricle contracts, the oxygenated blood is pumped into the aorta which carries the blood to the body. The deoxygenated blood from the body is carried back into the heart by the main vein. The deoxygenated blood filters into the right atrium and is then squeezed into the right ventricle when the right atrium contracts. The blood moves into the pulmonary artery when the right ventricle contracts. This deoxygenated blood is carried to the lungs by the pulmonary artery, and the oxygenated blood from the lungs is carried back to the heart by the pulmonary vein. The oxygenated blood filters into the left atrium and moves into the left ventricle when the atrium contracts, and the cycle continues.

Calculus
TutorMe
Question:

Find the derivative of: (a) xe^(2x) (b) sin(3x)

Prerona D.
Answer:

(a) d/dx (xe^(2x)) = x d/dx (e^(2x)) + (e^(2x)) d/dx (x) = x * (e^(2x) d/dx (2x)) + (e^(2x)) * 1 = x (e^(2x) * (2) + e^(2x) = x (2e^(2x)) + e^(2x) = 2x(e^(2x)) + e^(2x) = e^(2x) [2x+1] (b) d/dx sin(3x) = cos(3x) * d/dx (3x) = cos(3x) * 3 = 3 cos(3x)

Send a message explaining your
needs and Prerona will reply soon.
Contact Prerona
Ready now? Request a lesson.
Start Session
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 Session" 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.