Chemistry 103 Quiz: Trivia Questions!

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    Write the formula between ionic compounds K and S? 

    • KS2
    • K3S2
    • K2S
    • K2S3
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About This Quiz


Why should we care about chemistry? If you’re asking yourself this question, you do not realize how important chemistry is to our daily lives. Chemistry is imperative for our basic needs, such as food, clothing, shelter, health, energy, clean water, and soil. Chemicals also help us to find new cures for deadly diseases or treatments for illnesses. Science is the reason why we now have a COVID vaccine. This quiz will show you how valuable chemistry is.

Chemistry 103 Quiz: Trivia Questions! - Quiz

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  • 2. 

    Round 0.00758 to two significant figures.

    • 0.0080

    • 0.00750

    • 0.0076

    • 0.0075

    Correct Answer
    A. 0.0076
  • 3. 

    The group 6A called? 

    • Halogens

    • Noble gases 

    • Alkali metal

    • Chalcogens

    Correct Answer
    A. Chalcogens
  • 4. 

    Convert 5 km/h  to  m/sec?

    • 1.5 m/sec

    • 1.37 m/sec

    • 1.39 m/sec

    • 2 m/sec

    Correct Answer
    A. 1.39 m/sec
  • 5. 
    The charge of element Ra? - ProProfs

    The charge of element Ra?

    • +1

    • -1

    • +2

    • Non of the above 

    Correct Answer
    A. +2
  • 6. 

    Calculate the mass in gram of cube if density = 19.32 g/cm3 and the length of the cube is 2 cm.

    • 154.56 g

    • 155 g

    • 154.1 g

    • 156 g

    Correct Answer
    A. 154.56 g
  • 7. 

    What is the concentration M of Na+ in a solution by dissolving 23.4 g of Na2CO3 in 125.0 ml of solution? M.w(Na2CO3) = 106 g/mol 

    • 3.4 M

    • 3.53 M

    • 3.00 M

    • 4.1 M

    Correct Answer
    A. 3.53 M
  • 8. 

    6.5 grams of Al reacts with excess of Oxygen. How many grams of Al2O3 is formed ? ( M.W Al = 27 g/mol . M.W Al2O3 = 102 g/mol )  4Al + 3O2 ——> 2Al2O3

    • 11.2 g

    • 12.1 g

    • 12.24 g

    • 13.35 g

    Correct Answer
    A. 12.24 g
  • 9. 

    How many Oxygen atoms are in 0.88 mol of C6H12O6? ( N.A = 6.02 *10^23 )

    • 31*10^23

    • 31.8*10^23

    • 32*10^24

    • 5.3*10^23

    Correct Answer
    A. 31.8*10^23
  • 10. 
    What is the molar mass Ba(OH)2 .8H2O? - ProProfs

    What is the molar mass Ba(OH)2 .8H2O?

    • 281.4 g/mol

    • 298.4 g/mol

    • 299.5 g/mol

    • 315.5 g/mol

    Correct Answer
    A. 315.5 g/mol
  • 11. 

    When 5g of H2 and 5g of O2 were reacted, the yield of H2O was 87.9%. What is the actual yield of H2O? 2H2 + O2 ——> 2H2O 

    • 6.4 g 

    • 4.9 g

    • 5.1 g

    • 12.8 g

    Correct Answer
    A. 4.9 g
  • 12. 

    Which one of the following is a correct expression for molarity? 

    • Mol solute / L solvent

    • Mol solute / ml solvent

    • Mmol solute / ml solution 

    • Mmol solute / L solution 

    Correct Answer
    A. Mmol solute / ml solution 
  • 13. 

    Carry out the following operation  ( 4.02+5.612 ) ( 15.2-15.15 ) = 

    • 0.48

    • 0.4

    • 0.5

    • 0.4816

    Correct Answer
    A. 0.5
  • 14. 

    50.0 ml of water were added to 150 ml of 5.0 M H2SO4 solution, calculate the concentration of the solution.

    • 3.3 M

    • 3.5 M

    • 4.00 M

    • 3.75 M

    Correct Answer
    A. 3.75 M
  • 15. 

    Calculate the molarity of NaOH solution if 10.42 ml of this solution are needed to neutralize 25.00 ml of 0.2043 M oxalic acid ( H2C2O4) ?

    • 1.500 M

    • 0.9803 M

    • 0.4902 M

    • 0.2500 M

    Correct Answer
    A. 0.9803 M

Quiz Review Timeline (Updated): Mar 21, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 30, 2019
    Quiz Created by
    Pharmacgy
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