C5: Chemical Changes Flashcards
1
Q
What is given off when a metal reacts with water or acids?
A
Hydrogen gas
2
Q
Explain OIL RIG
A
Oxidation Is Loss of electrons
Reduction Is Gain of electrons
3
Q
In what state is gold found?
A
Native state
4
Q
Metals more reactive than carbon ________ be extracted from their ores using carbon.
A
Cannot
5
Q
How are salts made?
A
By reacting a metal and an acid
6
Q
What occurs when an acid reacts with a base?
A
Neutralisation
7
Q
What is produced when an acid and a base react?
A
Salt and water
8
Q
What happens when a carbonate reacts with an acid?
A
A salt, water and carbon dioxide are produced
9
Q
What are bases?
A
Substances that will neutralise acids
