Metals and Oxides

What is oxidation?

• The process of gaining oxygen

• The process of losing oxygen

• The process of separating metals from their oxides

• The process of forming metal oxides

What is reduction?

• The process of gaining oxygen

• The process of losing oxygen

• The process of separating metals from their oxides

• The process of forming metal oxides

Which metal naturally reacts with oxygen in the air to form rust?

• Gold

• Iron

• Copper

• Zinc

Why do we find metals bonded to oxygen most commonly?

• Because oxygen is the most abundant element in the atmosphere

• Because oxygen is highly reactive with metals

• Because oxygen is the only element that can bond with metals

• Because oxygen is the easiest element to separate from metals

Which metals can be extracted from their oxides using the reduction with carbon technique?

• Gold, Silver, Platinum

• Zinc, Iron, Copper

• Aluminum, Titanium, Nickel

What is the process called for extracting metals from their oxides using electrolysis?

• Reduction with carbon

• Oxidation with oxygen

• Electrochemical reduction

• Electrolytic reduction

Why is electrolysis an expensive process for extracting metals?

• It requires a large amount of carbon

• It requires a high temperature

• It requires a lot of energy

• It requires a long reaction time

Which metal can be extracted from its oxide using reduction with carbon?

• Aluminum

• Magnesium

• Copper

• Silver

What is the product of the reaction between Fe2O3 and carbon?

• FeO

• Fe

• Fe3O4

• Fe2O

Can magnesium displace copper from copper oxide?

• YES

• NO