Download Metal ores powerpoint questions

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
Metals and Their Ores
Answer all questions in the space provided.
1. Name a metal found as itself in the Earth’s crust.
…………………………………………………….
2. What type of compound are most metals found as in the Earth’s crust?
………………………………………………………………………………………………………………………………………………………………………………
3. Name the most abundant metal found in the Earth’s crust.
………………………………………………………………………………………………………………………………………………………………………………
4. What element must be removed from the ore in order to end up with the metal itself?
………………………………………………………………………………………………………………………………………………………………………………
5. What do we call this process?
………………………………………………………………………………………………………………………………………………………………………………
6. Give a definition for oxidation.
………………………………………………………………………………………………………………………………………………………………………………
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.
………………………………………………………………………………………………………………………………………………………………………………
9. How is iron obtained industrially from iron ore?
………………………………………………………………………………………………………………………………………………………………………………
10. Why can’t aluminium be obtained in this way?
………………………………………………………………………………………………………………………………………………………………………………
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 ………………… .
•
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
………………………… .