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Chemistry Quiz

Robin Biznis March 8 2019 Belgrade, Serbia

Hi all.

Chemistry QuizIn this small and light quiz, you will remember the concepts of chemistry that you learned at the beginning of schooling.I hope that you will remember and know all the answers.I wish you a good party.

  • Question of

    :In the chemical reaction of sulfur and oxygen, a substance of a gaseous aggregate state, sulfur (VI) – oxide, is formed which

    • And it reacts with water
    • Do not react with water
    • Reacts with oxygen
  • Question of

    Substance that can not be explained on even simpler substances is:

    • Homogeneous mixture
    • Heterogeneous mixture
    • Chemical element
  • Question of

    Which preparation is used as a hair whitener?

    • KOH
    • H2O2
    • HCN
  • Question of

    In the chemical reaction of calcium oxide (CaO) with water, there is:

    • Acid
    • Oxide
    • Base (hydroxide
  • Question of

    What is imperial water?

    • Sulfuric acid
    • Nitric acid
    • Sulfur and Nitric acid combined
  • Question of

    When you use a chemistry practice to measure a sample on scale and get a score of 2.5 g, you have determined

    • Weight
    • Volume
    • Mass
  • Question of

    Brass is an alloy of two metals?

    • Copper and iron
    • Copper and zinc
    • Mercury and gold
  • Question of

    It is known as “gas for laughing” because it causes euphoric effects during its inhalation. It was discovered by British chemist Jeshph Priestley, now used in medicine. How is his formula?

    • NO2
    • N2O
    • NH3

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24 Comments

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    • Thank you Norma.
      . This is an accurate explanation according to the statements of the vikipedija. My question was raised out of my knowledge as I went to a chemistry school.
      So: Imperial water (Latin aqua regia) is a mixture of one volume of concentrated nitric acid and three volumes of concentrated hydrochloric acid. It is an easily volatile yellowish liquid. It is extremely caustic. [3] [4] Sometimes it is also called the Royal Guide.

      It got its name from being able to react with noble (imperial / royal) metals, primarily gold and platinum that do not react with other substances.

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