Chemistry of Iron Oxide & Metal Alloys

How are metal oxides formed?

• When metals react with oxide.
• When metals react with water.
• When metals react with air.
• When metals react with oxygen.

Which of the following is the product of the reaction of aluminium and oxygen?

• aluminium oxide.
• metal oxide
• aluminium ore
• aluminium and oxygen

Tags

NGSS.MS-PS1-5

Which of the following defines oxidation?

• A chemical reaction where a substance gains oxygen.
• A chemical reaction where a substance loses oxygen.
• A chemical reaction where a substance loses a metal.
• A chemical reaction where a substance gains a metal.

The rusting of iron is an example of

• a reduction reaction.
• an oxidation reaction.
• a reaction of iron with water.
• a reaction that dissolves iron.

When metals are extracted from ores, a __________ reaction is used.

• oxidation.
• reduction.
• extraction
• mining

Tags

NGSS.MS-PS1-5

The process of extracting ores from the ground is called

• extraction.
• mining.
• reduction.
• oxidation.

All metal elements melt at the same boiling point.

• True

• False

What can act as an insulator, preventing the movement, of electricity?

• glass

• wood

• rubber

• copper

What do you measure of a metal when you dent it?

• hardness

• cleavage

• luster

• streak

Which of the following conductors are used because they are readily available so they are cheap to use?

• gold

• silver

• copper

• aluminum

Tags

NGSS.MS-ETS1-1