Iron and Zinc

What is one common use of zinc?

• Making plastic

• Strengthening paper

• Coating steel to prevent rust

• Flavoring food

A process called ___________, stops water and oxygen from causing steel to rust.

What is a redox reaction?

• A reaction that only involves reduction

• A reaction where both oxidation and reduction occur

• A reaction that changes the color of a substance

• A reaction that produces light

What happens to iron when it rusts?

• It undergoes reduction

• It becomes stronger

• It undergoes oxidation

• It turns into zinc

Why is zinc used to coat iron?

• Because it's cheaper than iron

• To make the iron shine

• To prevent the iron from rusting

• To make the iron heavier

What is an alloy?

• A type of expensive gold

• A mixture of two or more metals

• A pure chemical element

• A special kind of rock

In the context of redox reactions, what does oxidation refer to?

• Loss of electrons

• Gain of electrons

• Loss of protons

• Gain of neutrons

In the context of redox reactions, what does reduction refer to?

• Loss of electrons

• Gain of electrons

• Loss of protons

• Gain of neutrons

What is the main reason for galvanizing iron?

• To improve its electrical conductivity

• To increase its weight

• To protect it from corrosion

• To enhance its magnetic properties

Can zinc be used to make an alloy?

• Yes, it can be mixed with other metals

• No, it's too brittle

• No, it can only be used for coating

• Yes, but only with iron