Download Metal ores powerpoint questions

Metals and Their Ores
Answer all questions in the space provided.
1. Name a metal found as itself in the Earth’s crust.
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2. What type of compound are most metals found as in the Earth’s crust?
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3. Name the most abundant metal found in the Earth’s crust.
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4. What element must be removed from the ore in order to end up with the metal itself?
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5. What do we call this process?
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6. Give a definition for oxidation.
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7. Below is part of the reactivity series.
Potassium
Sodium
Lithium
Calcium
Aluminium
Zinc
Iron
Tin
Lead
Copper
Silver
Gold
Platinum
a) Use a red line to show the position of carbon.
b) Use a blue line to show the position of hydrogen.
8. Name a metal less reactive than carbon.
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9. How is iron obtained industrially from iron ore?
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10. Why can’t aluminium be obtained in this way?
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Summary
Use words from the list to fill in the blanks.
oxide
carbon
ores
reduction
•
electrolysis
blast furnace
added
oxidation
naturally occurring minerals found in the Earth’s crust that are raw materials
from which metals are extracted are called ………………… .
•
often the ore is a metal compound called an ………………… .
•
the removal of oxygen from a substance is called ………………… .
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the opposite process is called …………………… . This is where oxygen is
……………………… to a substance.
•
iron is extracted from its ore using the element …………………… . This is
done in the …………………… …………………… .
•
aluminium is too reactive so is extracted from its ore using
………………………… .