2020年8月6日 · Baking soda (sodium bicarbonate ) reacts with lemon juice ( citric acid ) chemical reaction takes place, carbon dioxide gas evolved. The carbon dioxide gas form on the surface of a naphthalene ball, it rises to the surface. This will provide the dancing effect.

2012年3月14日 · Take a 500 ml beaker add sodium bicarbonate ,citric acid and 400 ml of water. Cover the beaker with lid. Put naphthalene balls into the solution. The balls go up and down. It's look like a dance. WHY ? Sodium bicarbonate react with citric acid to evaporate carbon dioxide gas. So that the naphthalene balls going up and down. www.chemistryworks.net.

Dancing mothballs appear in a children's science book by 1944. Mae and Ira Freeman's Fun with Chemistry titles the project "the soda water gas" but the instructions are the same - water, vinegar and baking soda. "The clinging bubbles act like little …

Here are four experiment objectives for the "Dancing Ball Experiment" involving baking soda and vinegar: Objective 1: Investigate the Chemical Reaction To observe and understand the chemical reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid) that produces carbon dioxide gas. Objective 2: Analyze Gas Production

2005年10月5日 · This year's Nobel Prize in Chemistry goes to three researchers who made the everyday task of making molecules infinitely easier for working chemists.

To observe the movement of naphthalene balls. In the experiment, when baking soda reacts with vinegar or Hydrochloric acid, Carbon dioxide gas is released. The density of naphthalene balls is more than that of baking soda so at first they will sink to the bottom.

Crystals of naphthalene form on the surface of an acetone solution and dance about in an animated fashion illustrating surface tension, crystallization, and intermolecular forces. Additional experiments reveal the properties of the solution. Flows …

2013年12月8日 · In this post, we will see how we can make naphthalene balls dance in a glass. Items needed: A glass or cylinder, oxalic acid, naphthalene balls, sodium bicarbonate (baking soda). How to do it: In a glass of water (about 300 ml), mix about 30 grams of oxalic acid and stir to dissolve. Keep a little room in the glass.

Fill two third of a beaker with vinegar or dilute solution of Hydrochloric acid, and put 5-6 small naphthalene balls in it. Add about half a spoon of Sodium hydrogen carbonate (baking soda) to it and observe. You will find that naphthalene balls start moving to the surface of the solution and then again go down.

This project name the electrostatic dancing ball. The purpose of making this project is because the teacher what use to learn about how the electrostatic work. We choose this topic because the charge of the ball, plastic sheet and the aluminium foil is easy to understand.