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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

What are spectator ions?

Present in reaction but don't form the precipitate