Calculation In Chemistry IGCSE Quiz!

8 Questions | Total Attempts: 349

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Calculation In Chemistry IGCSE Quiz!

Are you familiar with calculations in chemistry, and do you think you can pass this quiz? In a chemical reaction, one or more reactants are converted into products. The objective of a chemical equation is to express this relation in terms of the actual reactants' formulas and items that identify a specific chemical change. If you are interested in how calculation in chemistry works, this is the quiz for you.


Questions and Answers
  • 1. 
    The formula of Iron III hydroxide is:
    • A. 

      Fe(OH)3

    • B. 

      Fe(OH)2

    • C. 

      Fe(OH)4

    • D. 

      FeOH

  • 2. 
    The relative formula mass of Calcium hydroxide Ca(OH)2 is:
    • A. 

      74g

    • B. 

      57g

    • C. 

      74amu

    • D. 

      57amu

  • 3. 
    The mass of 2 mol of carbon dioxide CO2 is:
    • A. 

      88 amu

    • B. 

      44g

    • C. 

      88 g

    • D. 

      44 amu

  • 4. 
    How many moles are there in 9.8g of sulphuric acid H2SO4?
    • A. 

      1 mol

    • B. 

      2 mol

    • C. 

      0.1 mol

    • D. 

      0.2 mol

  • 5. 
    The number of atoms found in one mole of silver atoms is called?
    • A. 

      Wissam's number

    • B. 

      Avogadro's number

    • C. 

      Newton's number

    • D. 

      Pascal's number

  • 6. 
    When the following equation is balanced, the sum of all coefficients will be   H2  +  O2  --->   H2O
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 7. 
    When the following chemical equation is balanced, the coefficients will be respectively   N2  +  H2  -->  NH3
    • A. 

      1 - 2 - 3

    • B. 

      3 - 2 - 1

    • C. 

      1 - 3 - 2

    • D. 

      0 - 3 - 2

  • 8. 
    5 moles of C6H12O6 has a mass:
    • A. 

      90

    • B. 

      900

    • C. 

      9

    • D. 

      0.9

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