Chemistry Chapter 6 & 7

1. 1An atom is the smallest part of an element that can exist.

   1. ATrue
   2. BFalse
2. 2There are how many elements found naturally on Earth?
   Answer: [blank_start]92[blank_end]

   1. A92
3. 3An element is a substance that can be split into anything simpler.

   1. ATrue
   2. BFalse
4. 4What is the chemical symbol for nickel?
   Answer: [blank_start]Ni[blank_end]

   1. ANi
5. 5What is the chemical symbol for manganese?
   Answer: [blank_start]Mn[blank_end]

   1. AMn
6. 6Copper can exist on its own.

   1. ATrue
   2. BFalse
7. 7Zinc and phosphorus were found around ........-........

   1. A1300-1400
   2. B1200-1700
8. 8[blank_start]Charcoal[blank_end] is a type of carbon when wood burns.

   1. ACharcoal
9. 9[blank_start]Scientists[blank_end] asked [blank_start]questions[blank_end] collected [blank_start]evidence[blank_end] and used creative [blank_start]thought[blank_end] to develop of the [blank_start]periodic[blank_end] table.

   1. Aquestions
   2. BScientists
   3. Cevidence
   4. Dthought
   5. Eperiodic
10. 10What is the melting point (°C) for potassium?

    1. A180 °C
    2. B64 °C

11. 11What is the melting point (°C) for fluorine?

    1. A-101 °C
    2. B-220 °C
12. 12When [blank_start]interpreting[blank_end] data describe [blank_start]patterns[blank_end] and trends in as much detail as possible.

    1. Ainterpreting
    2. Bpatterns
13. 13Most metals have lower melting points and boiling than non-metals.

    1. ATrue
    2. BFalse
14. 14Atom [blank_start]arrangements[blank_end], and [blank_start]forces[blank_end] between atoms, explain metal and non-metal [blank_start]properties[blank_end].

    1. Aarrangements
    2. Bforces
    3. Cproperties
15. 15A compound is a substance made up of atoms of elements joined to atoms of other elements.

    1. ATrue
    2. BFalse
16. 16The properties of a compound are similar from the properties of its elements.

    1. ATrue
    2. BFalse
17. 17When planning an investigation, use scientific knowledge to:
    a. develop a [blank_start]question[blank_end]
    b. [blank_start]make[blank_end] a plan
    c. control [blank_start]risks[blank_end]
    d. [blank_start]consider[blank_end] evidence
    

    1. Aquestion
    2. Bmake
    3. Crisks
    4. Dconsider
18. 18[blank_start]Flame[blank_end] tests help identify metal atoms in [blank_start]compounds[blank_end].

    1. AFlame
    2. Bcompounds
19. 19Zinc + oxygen = [blank_start]zinc oxide[blank_end]

    1. Azinc oxide
20. 20A sulfate is a compound of nitrogen, oxygen, and another element.

    1. ATrue
    2. BFalse
21. 21A mixture has different properties to the substances in it.

    1. ATrue
    2. BFalse
22. 22[blank_start]Decanting[blank_end] separates an [blank_start]insoluble[blank_end] solid from a liquid or solution.

    1. ADecanting
    2. Binsoluble
23. 23Distillation involves [blank_start]evaporating[blank_end] and [blank_start]condensing[blank_end] the solvent from a solution.

    1. Acondensing
    2. Bevaporating
24. 24[blank_start]Fractional[blank_end] distillation separates liquids with different boiling points.

    1. AFractional
25. 25[blank_start]Chromatography[blank_end] can separate mixtures of substances that are soluble in the [blank_start]same[blank_end] solvent.

    1. AChromatography
    2. Bsame
26. 26Panning [blank_start]separates[blank_end] a [blank_start]dense[blank_end] metal, or metal-containing compound, from the less dense substances it is mixed with.

    1. Aseparates
    2. Bdense
27. 27Our bodies are made of compounds containing mainly the elements carbon, hydrogen, and nitrogen.

    1. ATrue
    2. BFalse
28. 28[blank_start]Chemical[blank_end] reactions create new substances.

    1. AChemical
29. 29In a word equation:
    - the reactants are on the [blank_start]left[blank_end] of the arrow
    - the [blank_start]products[blank_end] are on the right of the arrow
    - the arrow means means reacts to [blank_start]make[blank_end]

    1. Aleft
    2. Bproducts
    3. Cmake
30. 30Rust is dried iron oxide.

    1. ATrue
    2. BFalse

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Quiz on Chemistry Chapter 6 & 7, created by Jaron Foo on 20/10/2018.

Author

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