2.3 Types of Chemical Changes Lesson

Types of chemical changes

How does a
reaction occur?

Labelling

Label the image of the reaction with the correct labels for reactants and products.

Drag labels to their correct position on the image

Reactant 2

Product

Reactant 1

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Multiple Choice

This chemical equation for magnesium oxide is an example of what type of reaction?
2Mg + O₂  → 2MgO

• decomposition reaction
• synthesis reaction
• single displacement reaction
• combustion reaction

Multiple Choice

What is (are) the reactant(s) in this reaction?

2Mg + O₂  → 2MgO

• 2 Mg

• O₂

• 2 Mg + O₂

• 2 MgO

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Multiple Choice

one compound breaks down into two or more simpler compounds

• combustion

• decomposition

• synthesis

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Multiple Choice

What element is needed as a reactant in order to call it an "oxidation" reaction?

• Oxygen

• antioxydant

• Rust

• Iron

Multiple Choice

Is this an oxidation reaction? (look at the image)

• Yes

• No

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Multiple Choice

What are the products of the chemical reaction pictured?

• CH₄ and CO₂
• CH₄ and O₂
• CO₂ and H₂O
• O₂ and H₂O

Multiple Choice

What is the difference between a oxidation reaction and a combustion reaction?

• Combustion doesn't require oxygen

• Combustion creates a lot of energy as a product

• Oxidation creates oxygen as a product

• They both need oxygen as a reactant.

Multiple Choice

What type of chemical reaction does this represent?

• Synthesis

• Decomposition

• Oxidation

• Combustion

Multiple Choice

What type of chemical reaction does this represent?

• Synthesis

• Decomposition

• Oxidation

• Combustion

Multiple Choice

What type of chemical reaction does this represent?

• Synthesis

• Decomposition

• Oxidation

• Combustion

Multiple Choice

What type of chemical reaction does this represent?

• Synthesis

• Decomposition

• Oxidation

• Combustion