Basic questions - Acids and Bases Flashcards
1
Q
Name 3 strong acids
A
Stomach acid
Car battery acid
Hydrochloric acid
Sulfuric acid
2
Q
Name 3 strong bases
A
Oven cleaner
Sodium hydroxide
Calcium hydroxide
3
Q
Name 3 weak acids
A
Vinegar
Tap water
Acid rain
4
Q
Name 3 weak bases
A
Soap
Bicarbonate of soda
Disinfectant
5
Q
Name the properties of a base
A
- feels soapy
- is caustic
- turns red litmus blue
- has a bitter taste
- conducts electricity
- are neutralised by acids, creating water and a salt
6
Q
Name the properties of acids
A
- are corrosive
- has a sour taste
- turns blue litmus paper red
- react some metals, releasing hydrogen gas and a salt
- conducts electricity
- are neutralised by bases, producing a salt and water
7
Q
What kind of ions do acids contain?
A
Hydrogen ions (H)
8
Q
What kind of ions does a base contain?
A
Hydroxide ions (OH)
9
Q
Define; Acid
A
A substance containing hydrogen ions and a pH of lower than 7
10
Q
Define; Base
A
A substance that hydroxide ions and a pH of higher than 7
11
Q
Does a solution of pH 7 contain more or less hydrogen than a solution of pH 4?
A
Less
12
Q
What element to all acids contain?
A
Hydrogen
