Chemical Changes Flashcards
What is it called when a metal reacts with oxygen?
When a metal reacts with oxygen, it is called oxidation
What is formed when a metal reacts with oxygen?
A metal oxide is formed when a metal reacts with oxygen
What is it called when oxygen is lost from a metal?
When oxygen is lost, it is called a reduction reaction
What does OILRIG stand for?
Oxidation is loss of electrons, Reduction is gain of electrons
What is produced when a metal reacts with water?
Metal hydroxide and hydrogen
What are bases?
Chemicals with can neutralise acids
What ion does acids produce?
Hydrogen Ion (H+)
What ion does alkalis produce?
Hydroxide ion (OH-)
What is produced when an acid and metal react?
Salt and hydrogen
What is produced when an acid and metal carbonate react?
Salt, Water and Carbon dioxide
What are strong acids?
Acids that can fully ionise in aqueous solutions
What are weak acids?
Acids that only partially ionise in aqueous solutions
