types of reactions

Question 1

decomposition

Answer 1

• when a substance is broken down into simpler substances

Question 2

oxidation

Answer 2

• when a substance reacts with oxygen

Question 3

reduction

Answer 3

• the removal of oxygen
• opposite of oxidation

Question 4

corrosion

Answer 4

• reaction of metals with oxygen or water
• not all metals corrode- high reactivity

Question 5

combustion

Answer 5

• when a substance reacts with oxygen and catches fire