Chemistry
Grade-8
Easy
Question
Making the hot ice is considered as the exothermic reaction. Which of the following substance is used for this process?
- Sodium acetate
- Sodium chloride
- Sodium hydroxide
- Sodium acetate and magnesium hydroxide
Hint:
Sodium acetate is a salt of acetic acid.
The correct answer is: Sodium acetate
- Sodium acetate resembles water ice, however, crystallization from a supercooled solution makes those crystals warm in place of cold. Hot ice is what you get while you solidify sodium acetate from a supercooled solution.
- The ensuing crystals resemble water ice, besides they're warm in place of cold. It's an amusing instance of an exothermic reaction. It's additionally one of the not common reactions used to make chemical hand warmers.
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