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Can you explain what stoichometry actually is and why the ratio is not the same as the number of moles?

Stoichiometry is just a way of relating two species that react, in a ratio. EXAMPLE: 1A + 2B -> 3C Now usually this would be written as A + 2B -> 3C but I've written the 1 to exaggerate the point. N...

MR
Answered by Michael R. Chemistry tutor
5480 Views

The roots of the equation z^3 + 2z^2 +3z - 4 = 0, are a, b and c . Show that a^2 + b^2 +c^2 = -2

If the roots of this cubic equation are a, b and c, then the equation can be written(z - a)(z - b)(z - c) = 0multiplying this out gives:z^3 - az^2 - bz^2 - cz^2 + abz + acz + bcz - abcgrouping terms with ...

EH
6300 Views

How do you order pronouns in the affirmative imperative in French?

The imperative mood is used when giving commands to a number of persons: either the 2nd person singular 'tu', the 1st ...

LR
Answered by Lauren R. French tutor
7586 Views

What is meant by an excited atom?

All that is meant by an 'excited' atom is that one or more of the atoms electrons in it's shells, are then excited into shells that are in higher energy states that they were in before.

F...

RW
Answered by Rebecca W. Physics tutor
14340 Views

Describe how the strong nuclear force between nucleons varies with seperation of the nucleons.

At short distances between the nucleons at roughly 3 femtometers or so, the strong nuclear force between two nucleons begins to overcome the electrostatic repulsion (if both or one nucleon is a proton)...

RW
Answered by Rebecca W. Physics tutor
17372 Views

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