Lesson 2: Oxidation

Question 1

What is oxidation?

Answer 1

Oxidation:
A chemical reaction where a substance reacts with oxygen.

Question 2

What is combustion?

Answer 2

Combustion:
The burning of a fuel with oxygen to release energy.

Question 3

What is the scientific name for rust?

Answer 3

Scientific name:
Iron oxide

Question 4

What are the products of methane + oxygen reacting?

Answer 4

Methane+ oxygen —> carbon dioxide+water

Question 5

What does magnesium+ oxygen produce?

Answer 5

• Magnesium oxide
• Give off a bright light that can be harmful to eyes.

Question 6

Why is there an apparent mass change in magnesium+ oxygen —> magnesium oxide?

Answer 6

• Oxygen is added
• The oxygen molecules aren’t measured at the reactants.
• In reality, mass is conserved.

Question 7

What is combustion?

Answer 7

Combustion is the burning of a fuel with oxygen to release energy.

Question 8

What is the equation for combustion?

Answer 8

Fuel+ oxygen —- >carbon dioxide + water

Question 9

How can you proove the prodcuts of combustion?

Answer 9

• Burn a fuel (bunsen burner.)
• The gass will travel through cold water to be condensed into water.
• When water is present, cobalt chloride paper will turn from blue to pink.
• Limewater will turn from clear to cloudy in the presence of carbon dioxide.