Marshmallow Chemistry

Explain how the atomic structure of sucrose changes when a marshmallow is roasted.

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Understanding

Which molecular formula represents sucrose, a key component in marshmallows?

• C₁₂H₂₂O₁₁

• C₆H₁₂O₆

• C₁₀H₂₀O₁₀

• C₄H₈O₄

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Remembering

Describe the chemical reactions that occur when a marshmallow is heated over a campfire.

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Understanding

How does the process of caramelization contribute to the flavor of a roasted marshmallow?

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Applying

Sucrose has the molecular formula (a)   . That means every molecule of sucrose has (b)   carbon atoms, (c)   hydrogen atoms, and (d)   oxygen atoms arranged in a specific (e)   .

• C₁₂H₂₂O₁₁
• 12
• 22
• 11
• structure

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NGSS.MS-PS1-1

What are the two main chemical reactions that occur when roasting a marshmallow over a flame?

• Combustion and Caramelization

• Oxidation and Reduction

• Fermentation and Combustion

• Photosynthesis and Respiration

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Explain the process of caramelization and its effects on the flavor and color of a marshmallow.

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Understanding

What are the products formed when a marshmallow undergoes combustion?

• Carbon dioxide, water vapor, light, and heat

• Oxygen and sugar

• Carbon monoxide and water

• Hydrogen and carbon

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Describe the role of oxygen in the combustion of a marshmallow.

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Applying

How does the chemical equation for the combustion of sucrose illustrate the concept of a chemical reaction?

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Understanding