Acids and bases

Question 0

Bases

Answer 0

Indigestion tablets
Soap
Shampoo
Bread soda
Toothpaste
Window cleaner

Question 1

Acids in the lab

Answer 1

Hydrochloride acid
- also found in the stomach
Sulphuric acid
- also found in car batteries

Question 2

Bases in the lab

Answer 2

Sodium hydroxide
-naOH
Limewater
- Ca(OH)2

Question 3

Acid

Answer 3

Lemons 
Vinegar
Vit C
Grapes
Rhubarb
Fizzy drinks
Tea
Apples

Question 4

pH

Answer 4

We can tell how acidic or basic a substance is by measuring something called pH

Question 5

Alkali

Answer 5

A base that dissolves in water is called an alkali e.g. Drain cleaner (sodium hydroxide)

Question 6

Neutral

Answer 6

If something is neither an acid nor a base, and has a pH of 7, then it is neutral

Question 7

Neutralisation

Answer 7

If an acid and base are mixed together in the right concentrations, then they neutralise each other.
A salt and water are produced

Question 8

Indigestion

Answer 8

Excess stomach acid, take an antacid (anti- acid) which is a base

Question 9

A bee sting is acidic

Answer 9

Rubbing a base e.g. Bread soda will neutralise it

Question 10

A wasp sting is alkaline

Answer 10

This needs to be treated with and acid e.g. Vinegar

Question 11

Titration

Answer 11

An experiment to neutralise an acid (hydrochloric acid) with a base (sodium hydroxide) is called titration

Question 12

The products of the titration

Answer 12

Salt and water

Question 13

Indicator paper

Answer 13

An indicator changes colour to tell us if something is an acid or base.

Question 14

Litmus

Answer 14

Is a dye on indicator paper

Question 15

Acid turns blue litmus paper

Answer 15

Red

Question 16

Base turns red litmus paper

Answer 16

Blue

Question 17

Universal indicator paper

Answer 17

This changes different colours for different pH values, it compared to the key on the pack

Question 18

Data logging

Answer 18

This is where you use a pH sensor connected to a computer to measure pH.

Question 19

Test for Hydrogen

Answer 19

Lit splint will “pop”

Question 20

Test for carbon dioxide

Answer 20

Limewater will turn milky