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 […]
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. […]
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.
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 […]
Rehydrating Copper (II) Sulfate Someone gave me an idea and I want to do it: See what he said? Let’s follow him. The last time we used test tubes and destroyed all of them! So I’m going to use a beaker. I put the copper sulfate in it and going to burn it. It’s white now. I’ll drop water on […]
How to Look at Pond Water With a Microscope After the microscope slide series, I wanted real specimens from nature like pond water, which is what I’m doing today, and I have a pond in my backyard. I did this several times, it will be easy, so let’s get started. Things you’ll need: Pond water, a jar, forceps eye dropper, microscope slides, […]