Write any activity to show chemical reaction
Answers
Hot Ice
When vinegar and baking soda mix, they form a chemical called sodium acetate. We refer to this as "hot ice." It’s an easy and safe experiment that uses supplies from around the house.
Materials Needed:
4 cups of white vinegar {acetic acid}
4 tablespoons of baking soda {sodium bicarbonate}
a pot
a glass measuring cup or mason jar {heat safe glass}
a dish
a spoon
How It's Done:
After collecting the supplies, measure out 4 cups of vinegar.
Pouring it into a medium pot.
Next, stir the mixture until all the baking soda has dissolved and stopped fizzing.
Boil the solution over medium low heat for a little over an hour (You’ll want to reduce the solution by about 75% or until you have about 3/4-1 cup). If you boil your solution at a higher temperature it may turn yellow-brownish. Don't worry, the experiment will still work.
Next, pour the concentrated sodium acetate into a glass pyrex measuring cup and placed it in the fridge to cool.
Then scrape a little of the dried sodium acetate powder off the inside of the pot to use later.
After about 30-45 minutes, the solution is cool enough to turn into ice. When you first take the solution out it will still be liquid. The act of pouring it onto a surface turns it into ice. So, grab a glass dish and place a small pile of the sodium acetate powder from the pot in the center (This act as a seed for the crystals to start forming on).
A pillar of cloudy ice will form.