5 Questions
What are pure substances?
Pure substances are elements or compounds made up of only one kind of entity, which cannot be broken down into simpler entities by chemical or physical methods and have a fixed composition.
What is an element?
An element is a substance that only contains one type or class of atom and cannot be altered through physical or chemical means to break down or create new substances.
What is the difference between compounds and mixtures?
Compounds are substances consisting of two or more different types of elements in a fixed ratio of its atoms, while mixtures are substances formed by physically mixing two or more substances.
What are the majority of elements?
The majority of elements are metals, nonmetals, or metalloids.
What are the characteristics of pure substances?
Pure substances typically only include one type of atom or molecule, are homogeneous in nature, have constant or uniform composition, and their boiling and melting points are constant.
Test your knowledge on the states of matter and purity of substances. Learn about the arrangement of particles in gases and solids, as well as the characteristics of pure substances.
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