Chapter 1: Chemistry: An Introduction

Question 1

Why is chemistry important?

Answer 1

New materials, pharmaceuticals, energy sources, food supplies, and help the environment

Question 2

What is chemistry?

Answer 2

Chemistry is the study of the MATERIALS of the universe and the CHANGES these materials undergo. Understanding most other fields of science requires an understanding of CHEMISTRY.

Question 3

Matter

Answer 3

Anything that has mass and occupies space

Question 4

Mass

Answer 4

The measure of the quantity of matter

Question 5

Scientific Method
1.

Answer 5

Make observations (both qualitative and quantitative)

Question 6

Scientific Method
2.

Answer 6

Formulate a hypothesis

Question 7

Scientific Method
3.

Answer 7

Design a set of experiments and test your hypothesis

Question 8

Experiment

Answer 8

Reproducible observation

Question 9

Hypothesis

Answer 9

Tentative explanation based on an experimental observation

Question 10

Theory

Answer 10

A well-tested unified principle that it explains what is going on (why it happens)

Question 11

Law

Answer 11

Concise statement or math equations about a fundamental relationship