Ch. 1 Flashcards
Quantitative
Includes numbers
Chemistry
The study of matter and how it changes
Qualitative
Descriptive or comparative analysis
Standard unit of length
Meter
Standard unit of mass
Grams
Standard unit of temp
Celsius
Standard unit of time
Seconds
Derived unit
One unit– volume, liter
Kilo
1000x
Hecto
100x
Deka
10x
Deci
.10x
Centi
.01x
Milli
.001x
Mass
Quantity of matter in an object
Sig figs w/ decimal pts
Count starting at first non zero from right to left
Sit fig w/ decimal pt.
Count from first non zero from left to right
Volume
The amount of space that a substance or object occupies
Density
The degree of compactness of a substance
Prefixes
Greek for big numbers, Latin for small
Percent error
|accepted value- experimental value|/accepted value x100%
What is the tentative proposal of a scientific principle that attempts to explain the meaning of a set of data collected in a experiment?
Hypothesis
Boiling and cooling point of Celsius
0 and 100
Boiling and cooling point on Kelvin scale
273.15 K and 373.15 K