Back to FlashcardsChemistry / Metal Extraction and Reactivity Series
What is an ore?
Tap or swipe ↕ to flip
Swipe ←→Navigate
1/10
Key Terms
Term
Definition
What is an ore?
An ore is a rock or mineral containing enough metal or metal compound to make it economical to extract the metal.
Why is electrolysis often used to extract metals?
Electrolysis is used because it can extract metals from their ores, but it requires electricity, making it expensive.
How are copper and iron extracted from their ores?
Copper and iron are extracted by reacting the ore with carbon or carbon monoxide, which involves a redox reaction.
What is bioleaching?
Bioleaching uses bacteria to leach out metal compounds from ores, which can then be purified by electrolysis or reaction with carbon.
What is phytoextraction?
Phytoextraction involves growing plants on ores to absorb metal ions, then harvesting and burning the plants to extract metals from the ash.
What is an alloy?
An alloy is a mixture of two or more elements, where at least one is a metal, and its properties differ from the individual metals.
Related Flashcard Decks
| Term | Definition |
|---|---|
What is an ore? | An ore is a rock or mineral containing enough metal or metal compound to make it economical to extract the metal. |
Why is electrolysis often used to extract metals? | Electrolysis is used because it can extract metals from their ores, but it requires electricity, making it expensive. |
How are copper and iron extracted from their ores? | Copper and iron are extracted by reacting the ore with carbon or carbon monoxide, which involves a redox reaction. |
What is bioleaching? | Bioleaching uses bacteria to leach out metal compounds from ores, which can then be purified by electrolysis or reaction with carbon. |
What is phytoextraction? | Phytoextraction involves growing plants on ores to absorb metal ions, then harvesting and burning the plants to extract metals from the ash. |
What is an alloy? | An alloy is a mixture of two or more elements, where at least one is a metal, and its properties differ from the individual metals. |
What is corrosion? | Corrosion is the reaction of a metal with its surroundings, such as air and water, leading to deterioration like rusting. |
How can rusting be reduced? | Rusting can be reduced by keeping oxygen and water away, using sacrificial protection, or coating the metal with paint or plastic. |
What is the reactivity series? | The reactivity series is a ranking of elements based on their reactivity, with metals reacting with acids or water if more reactive than hydrogen. |
What is oxidation and reduction? | Oxidation is the gain of oxygen or loss of electrons, while reduction is the loss of oxygen or gain of electrons. |