Core Chemical Concepts Flashcards
1
Q
Sublevels and Electrons
A
- s: 2
- p: 6
- d: 10
- f: 14
2
Q
pH levels
A
- Are logarithmic (i.e. pH of 9 is 100 times less acidic than pH of 7)
- Acids have pH < 7, neutral particles = 7, alkaline/base particles > 7 (0 to 14)
3
Q
Phenolphthalein
A
Colourless in acids and neutrals, pink in bases
4
Q
Bromothymol Blue
A
Yellow in acids, green neutral, blue in bases
5
Q
Red Cabbage Juice
A
Red in acids, blue/purple neutral, green in bases
6
Q
Properties of Acids
A
- Have hydronium (H^+)
- Sour taste
- Electrical conductivity in solutions
- Blue litmus paper reacts by becoming red
7
Q
Properties of Bases
A
- red litmus paper reacts by becoming blue
- bitter taste
- electrical conductivity
- slippery texture
- (sometimes) contain hydroxide
8
Q
Synthesis
A
A + B → AB
9
Q
Decomposition
A
AB → A + B
10
Q
Single Replacement/Displacement
A
A + BC → AC + B
11
Q
Double Displacement/Replacement
A
AB + CD → AD + BC
12
Q
Combustion
A
A + O2 → O mix w/ A
13
Q
Diatomic Elements
A
- Gases: H, O, F, I, N, Cl
- Liquids: Br
14
Q
Salts v. Acids
A
- Acids: Contain hydronium
- Salts: Contain particles of opposite charges
- Both are dissolved
15
Q
Ionic Compounds
A
- State at RT: Solid
- Water Solubility: High
- Solution Color: Colourless
- Solution Conductivity: High
