Acids Flashcards
(8 cards)
1
Q
What is hydrochloric acid used for
A
It is used to break down food and kill bacteria .
2
Q
How do indigestion tablets work
A
Indigestion tablets contain bases such as calcium carbonate that neutralise the excess acid.
3
Q
An acid plus a base gives a:
A
Salt plus water
4
Q
Acid plus a carbonate
A
Salt plus water plus carbon dioxide
5
Q
What is electrolysis
A
The breaking down of a compound by using electrical energy
6
Q
Test for hydrogen and chlorine
A
Chlorine breeches damp blue litmus paper turning it white.
Hydrogen makes a squeaky pop with a lighted splint
7
Q
Natural thing to get chlorine gas
A
Sea water or brine
8
Q
Three uses of chlorine
A
Treat water supplies
Bleach
Used to make poly(chloroethene)
