in

Quiz Love ItLove It

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.

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

    • Homogeneous mixture
    • Heterogeneous mixture
    • Chemical element
  • Which preparation is used as a hair whitener?

    • KOH
    • H2O2
    • HCN
  • In the chemical reaction of calcium oxide (CaO) with water, there is:

    • Acid
    • Oxide
    • Base (hydroxide
  • What is imperial water?

    • Sulfuric acid
    • Nitric acid
    • Sulfur and Nitric acid combined
  • 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
  • Brass is an alloy of two metals?

    • Copper and iron
    • Copper and zinc
    • Mercury and gold
  • 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

What do you think?

17 points
Legend

Written by Robin Biznis

Hello

 

I am Dragan Čanković aged 65 years. I live in Belgrade, Serbia as a pensioner. On this site, my nickname is as well as on Facebook Robin Biznis.

Here I am trying to make some money through my own.

It's also very interesting for me to read what other people are writing and publishing.

I experience it as a creative work that actually is.

I wish you all good health and happiness to all of you.

Dragan Cankovic

22 Comments

Leave a Reply
    • 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.

Leave a Reply