Pure Substance
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Pure Substance:
Imagine trying to sort a mixed bowl of candies where you want only the chocolates. This problem is similar to the concept of a pure substance because, just as you want only chocolates without any other candies mixed in, a pure substance consists of only one type of particle, like oxygen or honey. In this analogy, each type of candy represents a different particle, and just as you aim to have only chocolates, a pure substance aims to consist of only one type of particle, ensuring uniformity and purity.

Practice Version

Pure Substance: An element or compound that consists of only one type of particle. e.g. oxygen, honey. pure substance. A pure substance is a material with a uniform and definite composition.