Chemistry

Using dry ice to blow up a balloon

Blow up a balloon with solid carbon dioxide Most substances have three states – solid, liquid, and gas. When they go from a solid to a gas, they usually turn into a liquid in between. Ice is a good example. It first melts into a liquid and then evaporates into a gas. Sublimation is when a chemical compound turns from a solid to a gas without turning into a liquid in between. Solid Carbon dioxide (or dry ice) and iodine are two compounds that sublime. When dry ice sublimes, it turns directly into carbon dioxide gas which expands in the process. Therefore, we can take dry ice, let it sublime into a gas, and use the gas to blow up a balloon. Follow these steps:…
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Chemistry

Ultra Cold LN2 Replacement

Ultra Cold LN2 Replacement that will instantly freeze anything! NOTE: THIS EXPERIMENT IS HIGHLY HAZARDOUS AND CAN RESULT IN INJURY OR DEATH. IT IS NOT INTENDED TO BE CONDUCTED BY CHILDREN BUT RATHER, SHOULD BE CONDUCTED BY SICENCE TEACHERS ONLY! Liquid nitrogen, represented by the equation LN2, is often used in higher level science experiments. In this experiment, we’ll create a liquid with the same “ultra cold” properties found in liquid nitrogen. You’ll need two plastic bottles, one slightly smaller than the other. Cut the tops off of both bottles. Cut a few inches down so all of the curved neck of the bottle is removed. In the smaller bottle poke a bunch of holes in the sides and bottom of the bottle. Now place…
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