chemical VS physical changes | Counting Atoms | Acids and Bases | electron levels |
---|---|---|---|
chemical reaction
When a reaction occurs, this reaction changes the entire structure of the atom
|
3
H2O
|
Acid
tastes sour
|
1
He
|
physical
When this reaction occurs it does NOT change the makeup of the structure
|
5
NH4
|
Base
taste bitter
|
2
C
|
a. State change
Which of the following tells us physical reactions have occurred
A. state change B. smell C. Gas/ bubble D. heat |
9
C2H6O
|
Acid
Contains OH
|
2
Li
|
chemical
acids and bases are with which type of reaction
|
6
NaHCO3
|
Acid
Reacts with metals
|
3
P
|
B. Gas/Bubbles
Which reaction is a part of chemical reactions
A. Shape change B. Gas/ Bubbles C. State change |
24
C6H12O6
|
Base
feels slippery
|
5
Te
|