Types of Chemical Reactions Quiz

What is oxidation in terms of electron transfer?

• Gain of electrons.

• Loss of electrons.

• Gain of protons.

• Loss of protons.

Tags

NGSS.HS-PS1-7

In the reaction Cu(s) + 2AgNO₃(aq) → Cu(NO₃)₂(aq) + 2Ag(s), which metal is more active?

• Silver

• Copper

• Both are equally active

• Neither is active

In a redox reaction, what happens to a substance that gains electrons?

• It becomes oxidized.

• It becomes reduced.

• It gains protons.

• It loses protons.

Order the following elements from least active to most active: lead, aluminum, copper, silver, zinc.

• Copper, silver, lead, zinc, aluminum

• Lead, copper, silver, zinc, aluminum

• Silver, copper, lead, zinc, aluminum

• Lead, zinc, copper, silver, aluminum

Tags

NGSS.HS-PS1-2

What is the general formula for a synthesis reaction?

• A + B → AB

• AB → A + B

• A + B → C

• AB + C → AC + B

Tags

NGSS.MS-PS1-5

What kind of reaction produces a precipitate?

• Single-displacement reaction

• Double-displacement reaction

• Combustion reaction

• Synthesis reaction

What happens in a single-displacement reaction?

• Two elements combine to form a compound.

• One element replaces another element in a compound.

• A compound breaks down into two or more elements.

• Two compounds exchange elements to form two new compounds.

What are the five types of chemical reactions mentioned in the text?

• Combustion, synthesis, decomposition, single displacement, double displacement

• Combustion, oxidation, reduction, neutralization, precipitation

• Synthesis, decomposition, oxidation, reduction, neutralization

• Single displacement, double displacement, neutralization, precipitation, combustion

What occurs during a combustion reaction?

• A substance reacts with oxygen to produce heat and light

• Two substances combine to form a new substance

• A compound breaks down into simpler substances

• An element replaces another in a compound

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What role does oxygen often play in oxidation-reduction reactions?

• It donates electrons.

• It is unreactive.

• It pulls electrons from metals.

• It gains protons.