Atoms, Compounds, Formulae and Mixtures Quiz

15 Questions

Quiz Description

The quiz, Atoms, Compounds, Formulae and Mixture Quiz, is made up of 15 questions, each question has four options of which only one of them is correct. The questions have been set based on the national curriculum and they meet up to the examination standard having varying difficulties to ensure that students succeed in their end of year examinations.

Being the smallest unit of ordinary matter which forms chemical elements, atoms which are two or more in an element are known as a compound, in other words, a compound is a substance which is made up of two or more atoms of different elements. A mixture on the other hand is a substance which is made up of two or more substances

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1:

 What is formed when carbon burns in excess air? 


Correct
  • 1:
    carbon oxide
  • 2:
    carbon dioxide
  • 3:
    carbon monoxide
  • 4:
    oxygen carbonate
2:

 The chemical symbol for the element nitrogen? 


Correct
  • 1:
    Ni
  • 2:
    No
  • 3:
    N
  • 4:
    Nt
3:

 Which of these is a compound? 


Correct
  • 1:
    CO2
  • 2:
    Co
  • 3:
    F2
  • 4:
    P4
4:

 Name of the element whose chemical symbol is Cl? 


Correct
  • 1:
    Clorine
  • 2:
    Cloride
  • 3:
    Chlorine
  • 4:
    Chloritine
5:

 Which two words apply to the substance copper sulphate? 


Correct
  • 1:
    gas, compound
  • 2:
    solid, compound
  • 3:
    gas, element
  • 4:
    solid, mixture
6:

 The chemical symbol for the element magnesium? 


Correct
  • 1:
    Mg
  • 2:
    Ms
  • 3:
    Mn
  • 4:
    None
7:

 Which picture represents a mixture of molecules of two elements? 


Correct
  • 1:
    ?
  • 2:
    ?
  • 3:
    ?
  • 4:
    ?
8:

 Silvery grey iron filings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? 


Correct
  • 1:
    the colour change suggests a chemical reaction has happened overall
  • 2:
    FeS describes them at the start, Fe + S describes them at the end
  • 3:
    the red glow without heating shows overall a physical change has happened to the mixture when cool
  • 4:
    at the start, acid will act on the iron forming hydrogen and the same gas is formed with acid and the dark-grey solid product
9:

 Name the element whose chemical symbol is Pb? 


Correct
  • 1:
    Plumbinium
  • 2:
    Pobium
  • 3:
    Lead
  • 4:
    none
10:

 

 What is the chemical symbol for the element fluorine?

 


Correct
  • 1:
    F
  • 2:
    Flo
  • 3:
    Fu
  • 4:
    None
11:

 When some salt is dissolved in plenty of water, which statement is most likely TRUE about the resulting solution? 


Correct
  • 1:
    the boiling point is lower than pure water
  • 2:
    the freezing point is higher than pure water
  • 3:
    the solution becomes more concentrated the longer it is boiled
  • 4:
    the boiling point decreases the longer the solution is boiled
12:

 Which of these is an element? 


Correct
  • 1:
    MgS
  • 2:
    CoO
  • 3:
    NaCl
  • 4:
    O2
13:

 Which statement is TRUE ? 


Correct
  • 1:
    there are about 100 different elements in the Periodic Table
  • 2:
    most elements are non-metals
  • 3:
    there are no liquid elements at room temperature and pressure
  • 4:
    most metals are magnetic
14:

 Silvery grey iron filings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? 


Correct
  • 1:
    the red glow without heating shows overall a physical change has happened to the mixture when cool
  • 2:
    at the start, acid will act on the iron forming hydrogen and the same gas is formed with acid and the dark-grey solid product
  • 3:
    the colour change suggests a physical change has happened overall
  • 4:
    Fe + S describes them at the start, FeS describes them at the end
15:

 The product of heating an iron-sulphur mixture is called? 


Correct
  • 1:
    iron sulphide
  • 2:
    sulphuric iron
  • 3:
    iron sulphate
  • 4:
    sulphide of iron

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Atoms, Compounds, Formulae and Mixtures Quiz
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