Enable contrast version

Tutor profile: Michael B.

Inactive
Michael B.
Monash University graduate. Experienced online tutor for K-12 math subjects, chemistry and physics
Tutor Satisfaction Guarantee

Questions

Subject: Chemistry

TutorMe
Question:

The valence or charge of an element can be the same as its oxidation state. In the reaction of magnesium with oxygen, the product is an oxide called magnesium oxide. How is the oxidation state of both elements different from their valence or charge?

Inactive
Michael B.
Answer:

Although the valence of magnesium as can be found in the periodic table is 2+ and oxygen is 2-, their oxidation states in the given chemical equation are both zero because the metal magnesium is in the free state and oxygen is a diatomic molecule. However, in magnesium oxide, the valence of magnesium is 2+ and oxygen is 2-. Hence, their difference.

Subject: Physics

TutorMe
Question:

When a 10 gram object and a 20 gram object is dropped from a height, both object will reach the ground at the same time, ignoring air resistance. If the two objects were instead thrown upward, each with an initial velocity of 5 meters per second, which object will reach the ground first, ignoring air resistance?

Inactive
Michael B.
Answer:

Ignoring air resistance, both objects will reach the ground at the same time. To find out why, take a lesson with me.

Subject: Algebra

TutorMe
Question:

The difference of two squares is a special product between the sum and difference of a binomial. Can you find the factors of the binomial (1 - x)?

Inactive
Michael B.
Answer:

By applying our knowledge in radicals, our factors are (1 - sqrt 2)(1 + sqrt 2) or in fractional exponent form we have (1 - x^1/2)(1 + x^1/2).

Contact tutor

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

Request lesson

Ready now? Request a lesson.
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.