Minerals and Ores

The video tutorial explains that the Earth's crust is made of rocks, which contain naturally occurring minerals. Ores are rocks with a high percentage of a specific mineral, such as hematite for iron or malachite for copper. The extraction of metals from ores involves understanding their reactivity and using single displacement reactions. A demonstration of copper extraction from malachite is provided, highlighting the process and economic considerations. The video concludes with a discussion on native metals like gold and platinum, which do not form compounds due to their low reactivity.

What is a mineral?

• A synthetic material

• A type of rock

• A naturally occurring element or compound

• A man-made element or compound

Which of the following is an example of an ore?

• Glass

• Plastic

• Quartz

• Steel

In the analogy of a chocolate chip cookie, what do the chocolate chips represent?

• The minerals

• The rock

• The factory

• The human-made components

What is the primary mineral found in limestone?

• Silicon dioxide

• Calcium carbonate

• Iron III oxide

• Copper II carbonate

What type of reaction is used to extract metals from ores?

• Single displacement reaction

• Synthesis reaction

• Combustion reaction

• Double displacement reaction

Which element is used to displace copper in the extraction process described?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

Which metals are typically found as native metals?

• Aluminum and zinc

• Silver and mercury

• Gold and platinum

• Iron and copper