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11 Cards in this Set

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Name the S.I. and English units for these variables:
Length, Time, Mass, Force, and Energy.
Length: Metre (m) - Foot(ft)
Time: Second (s) - Second (s)
Mass: Kilogram (kg) - Slug
Force: Newton (Nt)- pound (lb)
Energy: Joule (J) - footpound (ft x lb)
Define Scaler (a) and give four examples (b).
(a) A quantity completely specified by it's magnitude w/ units.

(b) Mass, time, energy, and distance.
Define Vector (a) and give five examples (b).
(c) How is a vector notated in the equation ?
(a) A quantity specified by it's magnitude w/ units AND direction.
(b) Force, acceleration, momentum, displacement (distance w/ direction), and velocity.
(c) An arrow above the variables' symbol.
(a) Sin is _____.

(b) Cosin is _____.

(c) Tangent is _____.
(a) Opposite over Hypotenuse.

(b) Adjacent over Hypotenuse

(c) Opposite over Adjacent
What is a Lewis Acid?
A substance that accepts a pair of electrons to form a new bond.
It is an electrophile.
What is a Lewis Base?
A substance with a pair of electrons that can donate to another nucleus to form a new bond.
It is a nucleophile.
Define resonance structure.
Lewis structure that differ only in the placement of electrons.
Define Major contributor.
The more stable resonance structure; it has a lower energy.
Define Minor contributor.
The less stable resonance structure, it has a higher energy.
List five ways to identify the major contributor.
1) Lowest Energy
2) As many octets as possible
3) As many bonds as possible
4) Any negative charge resides on the most electronegative atom.
5) As little charge separation as possible.
Define electronegativity.
The tendency of an atom in a compound to draw electrons towards itself.