Making a Mercury Switch

Making a Mercury Switch Remember that experiment about mercury? I tried to show you that mercury can conduct electricity. And it did. I studied it a little bit more and I found this: A Simple (Tilt) Mercury Switch: It’s similar to the one we did the last time. Instead of tilting it around, what if you suck the mercury in […]

Read More →

Making Naphthalene Crystals

Making Naphthalene Crystals I realized that time passes so fast, it was about a week since I made a new post. I feel like it has been for only 3 days. Anyways, let’s get started with the post. I’ll try to make Naphthalene crystals. Naphthalene is a white crystalline solid with a characteristic odor. It’s melting point is about 80°C. […]

Read More →

Turning a Coin to Silver and Gold (Simple Redox Reaction)

Turning a Coin to Silver and Gold (Simple Redox Reaction) This simple experiment will make you understand the redox reaction. This is one of my favorite experiments so I decided to make a post about it. Things you’ll need: a copper coin (a penny, basically), zinc powder, sodium hydroxide (more than 50%), alcohol lamp, forceps, and a beaker. Pour Sodium Hydroxide into a beaker and pour some zinc dust in it, enough to cover the coin. Put the coin the beaker and wait for a couple hours, I’ll be using my country’s copper coin.    Take the coin out with forceps and wash it with water, now you have a silver coin. If you want to continue, do the following steps: Make sure the coin is dry. Heat it up with an alcohol lamp until it’s yellow. Enjoy. An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two chemicals. A redox reaction is any chemical reaction in which the oxidation number of a molecule, ion, or atom changes by losing or gaining an electron. For example, like this experiment, the zinc transferred its ions to the copper; that’s how the coin turned silver, and that’s why this is a redox reaction. What about turning it to gold? The color of silver and copper are just mixing together when heated and that makes the gold color.

Read More →

Warm Chemistry

Warm Chemistry After that long break, I would like to do a very simple experiment to start. This one is pretty common, most people probably know this experiment, but no one realized that there was more to it. Things you’ll need: Yeast, hydrogen peroxide, a beaker, and a thermometer. Pour 200 ml of hydrogen peroxide into a beaker. Insert the […]

Read More →