Module #4 - Concepts Flashcards
1
Q
Chemical Equation
A
A method of writing the chemical reaction which tells us what happens by using the Chemical Symbols. It forms the basis for most work done in chemistry.
Example: C + O2 -> CO2
2
Q
Balanced Chemical Equation
A
Making sure that the number of atoms on each side of the chemical equation (the arrow) equal each other.
3
Q
What are the 4 classifications of matter?
A
Elements (Pure Substances)
Compounds (Pure Substances)
Homogeneous Mixtures
Heterogeneous Mixtures
4
Q
What are 2 classifications for the changes that matter undergoes?
A
Physical Changes
Chemical Changes
5
Q
What are the 3 main phases of substances?
A
Solid
Liquid
Gas
