Acids And Bases

Question 1

Examples of acids

Answer 1

Hydrochloric acid, vitamin C, lemons, sour milk

Question 2

Litmus

Answer 2

Acid turns litmus from blue to red
Bases turn litmus from red to blue
Neutral red stays red and vice versa

Question 3

Indicator

Answer 3

A compound which shows by means of colour change whether a substance is acidic or basic

Question 4

Examples of neutral substance

Answer 4

Sugar, salt water

Question 5

Examples of bases

Answer 5

Indigestion tablets
Bath salts
Toothpaste
Window / oven cleaner

Question 6

PH scale

Answer 6

7- neutral
1-7 acidic
7-14 base (alkaline)

Question 7

How do we find the ph of a solution

Answer 7

A ph sensor attached to a datalogger and a computer
- ph paper
-universal indicator solution
They’re placed in the tested solution , there will be a colour change which you should compare against a colour chart that comes with it