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Chapter 1 | CHEM - Chemistry 1 - Introduction, Quizzes of Chemistry

Class: CHEM - Chemistry 1 - Introduction; Subject: Chemistry; University: Rock Valley College; Term: Forever 1989;

Typology: Quizzes

2014/2015

Uploaded on 01/15/2015

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TERM 1
Scientific
Notation
DEFINITION 1
Scientific Notation; n is a whole number and the exponent is
a positive or negative integer (N x 10n )
TERM 2
When is n in scientific notation
positive/negative?
DEFINITION 2
if the decimal moves left, its positive & when it moves right
its negative
TERM 3
Sig Figs
DEFINITION 3
the meaningful digits in a measured or calculated quantity
TERM 4
What is always uncertain when using sig figs?
DEFINITION 4
The last digit
TERM 5
What numbers are significant when using sig
figs?
DEFINITION 5
any non-zero digit, zeroes between nonzero digits, zeros to
the right of a digit greater than one (zeros to the left of
nonzero digits are not significant)
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TERM 1

Scientific

Notation

DEFINITION 1

Scientific Notation; n is a whole number and the exponent is

a positive or negative integer (N x 10n )

TERM 2

When is n in scientific notation

positive/negative?

DEFINITION 2

if the decimal moves left, its positive & when it moves right

its negative

TERM 3

Sig Figs

DEFINITION 3

the meaningful digits in a measured or calculated quantity

TERM 4

What is always uncertain when using sig figs?

DEFINITION 4

The last digit

TERM 5

What numbers are significant when using sig

figs?

DEFINITION 5

any non-zero digit, zeroes between nonzero digits, zeros to

the right of a digit greater than one (zeros to the left of

nonzero digits are not significant)

TERM 6

Accuracy

DEFINITION 6

how close a measurement is to the true value of the quantity

that was measured

TERM 7

Precision

DEFINITION 7

Precision; how closely two or more measurements of the

same quantity agree with one another