Ch. 1 Definitions
Anything that takes up space and has mass
Matter
Atoms that occur naturally as a pair
Diatomic
What is the first step of the Scientific Method?
Observe
What are the 4 states of matter?
Solid, liquid, gas, and plasma
CO4
1
Data that is countable or measurable, relating to numbers
Qualitative data
Any changes in the appearance, shape, or state of matter
Physical change
What is the second step of the Scientific Method?
Hypothesis
Characteristics of a solid?
Definite shape and volume
HCO3
1
describes a recognizable, repeating pattern on nature. Usually involves equations
Describes how matter acts in the presence of other materials or how it changes composition under certain conditions.
Chemical property
What is the third step of the Scientific Method?
Experimentation
Characteristics of a liquid?
Definite volume but no definite shape
2C2H2
4
Reasoning that makes specific observations and then draws a general conclusion
Inductive Reasoning
Properties that do NOT require/depend on the amount of material present.
Intensive property
What is the fourth step of the Scientific Method?
Use Results to develop a theory
Characteristics of a gas/vapor?
No definite shape of volume
C4H8O2
4
Worldview based on the belief that mater is all that exists and human reasoning informed by science is the only reliable path to truth
Naturalism
A pure substance that is 2 or more elements chemically combined in a fixed ratio.
Compound
What is the fifth step of the Scientific Method?
Theory leads to a law. Including equations and replicate experiments under many different conditions that give the same result
FALSE. Kinetic-molecular theory: attractive forces play a role as well
Ca(HCO3)2
2