Metal Extraction and Mineral Identification

This lesson covers the basics of minerals and ores, explaining how minerals are naturally occurring elements or compounds found in rocks. It discusses the economic value of ores, which are rocks with high mineral content, and the extraction processes used to obtain metals from these ores. The lesson includes a demonstration of copper extraction from malachite and explains the importance of the reactivity series in determining extraction methods. It concludes with a discussion on native metals like gold and platinum, which are found in their elemental form.

What is a mineral?

• A type of metal

• A synthetic rock

• A naturally occurring element or compound

• A man-made element or compound

Which ore contains a high percentage of iron?

• Hematite

• Quartz

• Cinear

• Malachite

What is an ore?

• A rock with a high percentage of a certain mineral

• A type of metal

• A type of mineral

• A synthetic compound

What is the main component found in limestone?

• Copper carbonate

• Silicon dioxide

• Calcium carbonate

• Iron oxide

Which of the following is not a type of mineral found in ores?

• Oxides

• Sulfides

• Carbonates

• Nitrates

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

• Double displacement reaction

• Combustion reaction

• Single displacement reaction

• Synthesis reaction

What is the role of the reactivity series in metal extraction?

• To determine the melting point of metals

• To measure the density of metals

• To compare the reactivity of metals for extraction

• To identify the color of metals

Which element is used to displace copper in copper oxide during extraction?

• Hydrogen

• Carbon

• Oxygen

• Nitrogen

Which metals are typically found as native metals?

• Aluminum and tin

• Iron and copper

• Silver and zinc

• Gold and platinum

What happens to copper carbonate when it is heated?

• It remains unchanged

• It turns into copper sulfate

• It decomposes into copper oxide and carbon dioxide

• It forms copper metal and water