enow.com Web Search

  1. Ad

    related to: chemistry experiment solutions for class 8

Search results

  1. Results from the WOW.Com Content Network
  2. Chemical chameleon - Wikipedia

    en.wikipedia.org/wiki/Chemical_chameleon

    Sodium hydroxide, potassium hydroxide, and ammonium hydroxide can be used to alkalize the permanganate solution, while a variety of reducing agents can be used, sugars being common. [ 1 ] [ 5 ] [ 8 ] A similar demonstration involves soaking paper in alkalized permanganate solution, which produces the same color changes as the paper is oxidized ...

  3. Blue bottle experiment - Wikipedia

    en.wikipedia.org/wiki/Blue_bottle_experiment

    The vanishing valentine experiment is another chemical reaction related to the blue bottle experiment. This reaction occurs when water, glucose, sodium hydroxide, and resazurin is mixed in a flask. When the solution is shaken, it turns from light blue to a reddish color. The solution turns back to a light blue after being left to stand for a while.

  4. Golden rain demonstration - Wikipedia

    en.wikipedia.org/wiki/Golden_rain_demonstration

    Golden rain demonstration is made by combining two colorless solutions, potassium iodide solution and Lead(II) nitrate solution at room temperature to form yellow precipitate. During the chemical reaction, golden particles gently drop from the top of Erlenmeyer flask to the bottom, similar to watching the rain through a window.

  5. Iodine clock reaction - Wikipedia

    en.wikipedia.org/wiki/Iodine_clock_reaction

    The iodine clock reaction is a classical chemical clock demonstration experiment to display chemical kinetics in action; it was discovered by Hans Heinrich Landolt in 1886. [1] The iodine clock reaction exists in several variations, which each involve iodine species ( iodide ion, free iodine, or iodate ion) and redox reagents in the presence of ...

  6. Category:Chemistry classroom experiments - Wikipedia

    en.wikipedia.org/wiki/Category:Chemistry...

    This category is devoted to simple classroom experiments as part of Chemistry education. Pages in category "Chemistry classroom experiments" The following 25 pages are in this category, out of 25 total.

  7. Screaming jelly babies - Wikipedia

    en.wikipedia.org/wiki/Screaming_jelly_babies

    The experiment is practised in schools around the world and is often used at open evenings to show the more engaging and entertaining aspects of science in secondary education settings. [2] [3] The experiment shows the amount of energy there is in a piece of candy. Jelly babies [4] or gummy bears [5] are often used for theatrics.

  8. Carbon snake - Wikipedia

    en.wikipedia.org/wiki/Carbon_snake

    A column of porous black graphite formed during the experiment. Carbon snake experiment. The carbon snake is a demonstration of the dehydration reaction of sugar by concentrated sulfuric acid. With concentrated sulfuric acid, granulated table sugar performs a degradation reaction which changes its form to a black solid-liquid mixture. [1]

  9. Elephant's toothpaste - Wikipedia

    en.wikipedia.org/wiki/Elephant's_toothpaste

    Elephant toothpaste reaction Two people watching the reaction of Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1]

  1. Ad

    related to: chemistry experiment solutions for class 8