Quiz - Chemical Reactions

A substance made up of two or more elements that are chemically bonded.

• Product

• Compound

• Reactant

• Atom

A process in which atoms rearrange to form new substances.

• vaporization

• disintegration

• chemical reaction

• phase change

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During a chemical reaction, atoms can

• be destroyed to form a new substance

• be created to form a new substance

• be rearranged to form a new substance

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The reactants in the image above are:

• CH₄ and 2O₂

• 2H₂O and CO₂

• All of these are reactants

• All of these are products

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NGSS.MS-PS1-5

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The products in the image above are:

• C₃H₈ + 5O₂

• 3CO₂ + 4H₂O

• All of these are reactants

• All of these are products

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NGSS.MS-PS1-2

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What is a product?

• Combination of one or more substances to create one or more different substances

• Change in which the identity of the substances remains the same

• Starting materials in a chemical reaction

• New substances formed by a chemical reaction

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NGSS.MS-PS1-5

What is a reactant?

• Combination of one or more substances to create one or more different substances

• Physical change of state in which identity of the substances remains the same

• Original substances present before a chemical reaction occurs

• Open system in which some matter escapes

What is "Conservation of Matter"?

• Combination of one or more substances to create one or more different substances

• Physical change of state in which identity of the substances remains the same

• Law stating that the matter going into a reaction must equal the matter coming out

• Open system in which some matter escapes

Tags

NGSS.MS-PS1-5

How many Silver (Ag) atoms are reactants in this equation?

4Ag + 3O₂ → 2Ag₂O

• 4

• 2

• 3

• 0

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NGSS.MS-PS1-5

Identify the type of chemical reaction shown in the picture

• Synthesis
• Decomposition
• Single replacement
• Double replacement
• Combustion

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2