When a crystal like Bismuth forms, why does it grow in the perfect squares it does? Why aren't they found in nature? Are Bismuth crystals specifically designed to look like squares, or do they form like that because of a natural crystal growth process? Are the squares shapes found in bi...
How do ionic bonds form crystals? Why are ionic compounds crystalline solids? How is a crystal lattice formed? Do crystalline solids have high or low melting points? Are diamonds crystalline solids? Is snow a crystalline solid? What are non-crystalline solids? Why do so many substances appear ...
How do you prepare the ether below? Describe how you would prepare astatine-211, starting with bismuth-209. Starting with 3-nitroaniline, show how to prepare 3-Fluorophenol. How could you prepare hexan-2-one from the mentioned starting material?
All you need to grow alum crystals are alum, hot water, and a container. Choose a clear container so you can watch the crystals grow. While not strictly necessary, it helps having a way to tie and suspend a crystal in the liquid. This helps it keep an ideal shape. A coffee filter o...
aDO not use on irritated,inflamed or broken skin.If you feel burning or stinging,remove product immediately and rinse well with water.Store at room temperature.If stored at a low temperature,crystals may form. 不要使用在被激怒的,被激起的或者打破的皮肤。如果您感到灼烧或刺痛,立刻去除产品并且用...
Minerals are crystals that are naturally formed of various elements under intense conditions. In the case of kyawthuite, scientists concluded during their study that the gem primarily contains bismuth (a silvery pinkish metal), antimony (a silvery bluish white metal or metalloid), and tetraoxygen ...
Stand the soda bottle in the baking pan and mold the dough around it to form a volcano shape. Be sure not to cover the hole or drop dough inside the bottle. Fill the bottle most of the way full with warm water and a bit of red food coloring. (You can do this prior to sculpting...
the other half are made by me. Generally speaking he makes the fancy platinum group metals like osmium, iridium, etc, while I make the more common transition metals, like bismuth cylinders, manganese ampoules, etc. I'm in the process of photographing the samples we offer:Click hereto see th...
Wolframite is acomparatively rare mineral, and is normally found usually with cassiterite and associated also with scheelite, bismuth, quartz, pyrite, galena, sphalerite, etc. It is found in fine crystals from Schlaggenwald, Bohemia, and in the various tin districts of Saxony and Cornwall. ...
the triangular shape the corner of the plastic bag gave it, along with the little spherical droplets that escaped into the saucepan. It's quite pretty, covered with tiny sparkling crystal surfaces; cooling it slower might have made bigger crystals, though nothing that could compete withbismuth. ...