Trivia: Elements And Compounds Test! Ultimate Quiz
10 Questions
| Total Attempts: 35
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Questions and Answers
- 1.Which one of these elements is found in the compound called calcium oxide (CaO)?
- A.
Oxygen
- B.
Carbon
- C.
Oxide
- D.
Calcide
- 2.This compound has the formula FeO. It is also known as 'rust'. What elements are bound together by chemical bonds in this compound?
- A.
Lead and oxygen
- B.
Iron and oxygen
- C.
Fluorine and oxygen
- D.
Fennel and oxygen
- 3.What do you think the Science name for 'rust' is?
- A.
Iron oxygen
- B.
Iron oxate
- C.
Tarnish
- D.
Iron oxide
- 4.How many atoms are in one particle of FeO?
- A.
1
- B.
2
- C.
3
- D.
4
- 5.CaCl2 is another compound. Although it is a type of chemical called a 'salt' it is not edible like table salt. It would burn a person's mouth if they ate it! How many chlorine atoms do you think are in each particle of calcium chloride?
- A.
1
- B.
2
- C.
3
- D.
None
- 6.Aluminum oxide is a compound with the formula Al2O3. How many ATOMS IN TOTAl (both Al and O) are in this formula?
- A.
2
- B.
3
- C.
3
- D.
5
- 7.How many ATOMS IN TOTAL are in the formula for aluminum chloride? AlCl3
- A.
2
- B.
3
- C.
4
- D.
5
- 8.Silver sulfide (also written 'silver sulfide') has the formula Ag2S. It is the 'tarnish' or black coating that forms on silver plates, spoons, and even coins over time. How many silver atoms are in this formula?
- A.
1
- B.
2
- C.
3
- D.
This is a trick question, Ag is not the symbol for silver!
- 9.Select all the ones that are true for Ag2S
- A.
This formula has 3 atoms in total
- B.
This compound contains silver and sulphur
- C.
The name of this compound is silver sulphur
- D.
This compound forms when oxygen in the air reacts with silver on plates or coins
- E.
This compound forms when sulphur in the air or in food reacts with things made from silver
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