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CHMY141 Fall 2014 Lesson 1.1
Chem Terms
7
Chemistry
Undergraduate 1
08/26/2014

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Term
Direct Proportionality
Definition
two quantities that have a constant ratio; expressed as y=x and y=kx where k is a nonzero constant
Term
Inverse Proportionality
Definition
two quantities that have a constant product; expressed as y=1/x and xy=k where k is a nonzero constant
Term
Proportionality Constant
Definition
the nonzero constant k in the equation that expresses the the relationship between two variables x and y
Term
Algebra
Definition
arithmetic in which letters are used to represent variables
Term
Variables
Definition
quantities that may have different values
Term
Equation
Definition
represents a mathematical relationship among variables
Term
Multiple Proportionalities
Definition

when one quantity is proportional to each of two or more other variables, it is proportional to the product of those variables

d=nt, d=knt, k=d/nt

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