Flashcards in Acids And Alkalis Deck (23)
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1
Acids have a pH of less than...
7
2
Bases have a pH of more than...
7
3
Difference between a base and an alkali?
Alkalis are just bases dissolved in water
4
Salts are made when an acid reacts with a...
Base, carbonate or metal
5
What colour does acid turn blue litmus paper?
Red
6
What colour does universal indicator turn with acid?
Red
7
What colour does an alkali turn universal indicator?
Blue
8
What colour does universal indicator turn with a neutral substance?
Green
9
What is produced when you dissolve acids in water?
Hydrogen ions, H+
10
What does (Aq) mean?
The substance is IN water
11
What is produced when Alkalis are dissolved in water?
Hydroxide, OH-
12
What's the neutralisation reaction?
H+(aq) + OH-(aq) --> H20
13
In a precipitation reaction, ions collide with one another to form...
An insoluble product. This is the precipitate.
14
What is hydrochloric acid?
HCL
15
What is nitric acid?
HNO3
16
Hydrogen peroxide
H2O2
17
Sodium hydroxide
NaOH
18
Potassium hydroxide
KoH
19
What is dissociation?
When a H-Cl molecule splits into H+ and Cl- ions
Or
NaOH becomes Na+ and OH- ions
20
How do you test for hydrogen gas?
Squeaky pop test
21
How do you test for carbon dioxide?
Co2 turns limewater cloudy white
22
What is effervescence?
Bubbly, fizzy
23