Acids And Bases Flashcards Preview

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Flashcards in Acids And Bases Deck (16):
1

Alkali

A base that dissolves in water eg drain cleaner

2

Neutral

Neither an acid nor a base
pH of 7

3

Neutralisation

Acid & base mixed together in the right concentration neutralise each other
Water and salt are produced

4

Indigestion

Excess stomach acid-> take an antacid (base)

5

Bee sting

Acid->rub a base (bread soda) on it to neutralise

6

Wasp sting

Alkaline-> needs to be treated with an acid (vinegar)

7

Acid

Turns blue litmus paper red

8

Strong acid

Hydrochloric acid
Sulphuric acid

9

Weak acid

Vinegar
Lemon juice
Acid rain

10

Base

Turns red litmus paper blue

11

Alkali

Bases that are soluble in water
Eg drain cleaner

12

Strong base

Sodium hydroxide
Calcium hydroxide

13

Weak base

Toothpaste
Soap
Window cleaner

14

Indicator

Changes colour to show if something is an acid or a base

15

pH levels

7- neutral
Less than 7- acid
More than 7- base

16

Titration

An experiment to neutralise an acid (hydrochloric acid) with a base (sodium hydroxide)
Burette,pipette,conical flask and white tile are used
HCI+NaOH->NaCl+H2O
Products are salt and water
Allows us to find out how much base is needed to neutralise