Limited Agents Chemistry

Substances that lose electrons easily and are oxidized in a chemical reaction are ____________.

• reducing agents

• coloring agents

• oxidizing agents

• neutralizing agents

• analytical agents

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A camera film is covered with silver ions that darkens upon exposure to light. The reaction that

takes place is: Ag ⁺ + e^‾ → Ag. In this reaction, silver ion acts as ____________

• reducing agent.

• dissolving agent.

• analytical agent.

• oxidizing agent

During the process of reduction, _________________

• protons are lost.

• protons are gained.

• electrons are lost.

• electrons are gained

• neutrons are lost.

The change of I^‾ to I₂ is ________________

• oxidation

• reduction

• neutralization

• Decomposition

• Combustion

Tags

NGSS.HS-PS1-2

Identify the species reduced in the following reaction.

Fe_(s) + 2 Ag⁺_(aq) → Fe²⁺_(aq) + 2 Ag_(s)

• Fe

• Ag

• none of these

• None of the above

Tags

NGSS.HS-PS1-2

The below reaction is an example of _________reaction.

F₂ → 2 F^- + 2 e^-

• Oxidation

• Reduction

• Neutralization

• decomposition

• combustion

Reduction is the ___________ of electrons.

• loss

• gain

• transfer

• share

Which statement is true:

Mg → Mg²⁺ + 2e^–

• Mg gains 2 electrons

• Mg²⁺ loses 2 electron

• Mg loses 1 electron

• Mg loses 2 electrons

Tags

NGSS.HS-PS1-2

A decrease in oxidation number.

• Oxidation

• combination

• reduction

Substance that oxidizes another substance by accepting its electrons.

• oxidising agent

• reducing agent

• combustion