Which of these liquids is the least acidic? 1 mark
(b) Emilio cooked an egg until it was hard-boiled.
He put the egg in a beaker of dilute hydrochloric acid as shown.
оо
dilute
hydrochloric
acid
bubbles
of gas
O
ООО
O
egg
D
0
(0)
The egg shell reacted completely with the acid.
After two days the pH of the liquid in the beaker was 2.5.
How did the acidity of the liquid in the beaker change?
Use the table above to help you.
1 mark