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- One basic division is into pure substances (elements and compounds) and mixed substances (mixtures, solutions, alloys). Mixed substances do not contain molecules that are all the same.
- Another way to classify matter is:
organic (from living things) and inorganic(natural elements and compounds).
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Substances are divided into two classes?
Substances are divided into two classes: pure substances and mixtures. Pure substances are chemically uniform and cannot be separated by physical means, while mixtures are combinations of two or more substances that can be separated by physical processes.
What are the general classes of colloids?
The general classes of colloids are sols (solid particles dispersed in a liquid), gels (cross-linked networks of solid particles dispersed in a liquid), and emulsions (liquid droplets dispersed in another liquid).
Distinction is made between these two kinds of pure substances?
The two kinds of pure substances are elements and compounds. Elements are made of only one type of atom, while compounds are made of two or more types of atoms chemically bonded together in fixed ratios.
What is matter and states of matter?
Matter is anything that has mass and occupies space. There are four main states of matter: solid, liquid, gas, and plasma. These states differ in the arrangement and movement of particles that make up the matter.
What are the two classes of ceramics?
The two classes of ceramics are traditional ceramics and advanced ceramics. Traditional ceramics are made from clay, while advanced ceramics are made from non-clay minerals and engineered materials.
