Unit 9H Quiz 1 – Combustion and Oxidation

In this chemical reaction, which is the product/s?

Magnesium + Oxygen --> Magnesium oxide

• magnesium

• magnesium and oxygen

• magnesium oxide

• oxygen

Tags

NGSS.MS-PS1-2

Three things that are needed for combustion are:

• oxygen, nitrogen and carbon dioxide

• fuel, oxygen and carbon dioxide

• fuel, heat and oxygen

• fuel, heat and carbon dioxide

What does a fuel need in order to burn?

• fuel

• electricity

• oxygen

• hydrogen

Tags

NGSS.HS-PS1-5

magnesium + oxygen --> magnesium oxide

If you started with 5g of magnesium and 2.5g of oxygen, what mass of magnesium oxide would be produced?

• 5g

• 2.5g

• 7.5g

• 10g

Tags

NGSS.MS-PS1-5

Hydrocarbons are fuels containing only:

• carbon and oxygen

• carbon and hydrogen

• carbon dioxide and hydrogen

• hydrogen and nitrogen

How are metal oxides formed?

• When metals react with oxide.
• When metals react with water.
• When metals react with air.
• When metals react with oxygen.

Which of the following reactions produces calcium oxide?

• calcium and oxide
• calcium and water
• calcium and air
• calcium and oxygen

Which of the following defines oxidation?

• A chemical reaction where a substance gains oxygen.
• A chemical reaction where a substance loses oxygen.
• A chemical reaction where a substance loses a metal.
• A chemical reaction where a substance gains a metal.

Which of the following is an example of an oxidation reaction?

• Ca  +   O₂ --> CaO
• Na₂O  + H₂O --> NaOH
• Fe₂O₃   + CO --> Fe   +  CO₂
• All of the choices are oxidation reactions.

The rusting of iron is an example of

• a reduction reaction.
• an oxidation reaction.
• a reaction of iron with water.
• a reaction that dissolves iron.