OBJECTIVE: To identify and distinguish between physical and chemical changes in
Physical change: change in size, shape, state, or temperature. No new
Chemical changes: new substance(s) formed. Look for heat, light, p
LAB SAFETY, EQUIPMENT, AND PROCEDURES
PURPOSE: To review lab safety, and introduce laboratory procedures and
INTRODUCTION: As a new chemistry student, it is imperative to understand safe
and proper procedures in the Chemistry laboratory. Safety
Measurements Date: _
Seven base units
Early atomists Leukippos, Demokritos, and Epikouros explain:
What are the
main point of
samples can't be _
Worksheet 1 Unit 2
With which of the following statements would John Dalton have agreed in the early 1800s? For each, explain
why or why not.
a. Atoms are the smallest particles of matter.
b. The mass of an iron atom is
Chemistry Worksheet: Graphing
A student masses a set of fasteners and a set of paper clips. The data is
given below. Plot the data and graphically determine the average mass of
a fastener and of a paper clip.
Number of Fasteners
Mass in grams