The Tim じぁん!!!
Today is sunny. I learned in science class about mixtures and solutions. Generally, any change that doesn't alter the particles is a physical change. The question came up: is salt dissolving in water a physical change? Indeed, it is. Then, I was asked how to separate sand and salt in a mixture. For the first time, I felt sharp enough to tackle the issue swiftly. I chose to mix the mixture in water; the sand would settle, and the salt would dissolve. Later on, I could evaporate the salty water to extract the solid salt. I feel like a genius!
Apr 9, 2024 10:31 AM
Corrections · 2
1
Today is sunny. I learned in science class about mixtures and solutions. Generally, any change that doesn't alter the particles is a physical change. The question came up: is salt dissolving in water a physical change? Indeed, it is. Then, I was asked how to separate sand and salt in a mixture. For the first time, I felt sharp enough to tackle the issue swiftly. I chose to mix the mixture in water; the sand would settle, and the salt would dissolve. Later on, I could evaporate the salty water to extract the solid salt. I feel like a genius!
Einstein! Actually it is not clear from your writing whether you are saying sand and salt is a mixture or not. Presumably before you add water it is a mixture then you have sand plus the salt solution.
April 9, 2024
Want to progress faster?
Join this learning community and try out free exercises!