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States of Matter
There three states of matter i.e solids, liquids and gases. The state of matter is determined by two things, either physical state and energy in the atoms and molecules. For instance , the physical properties of a solid often include “hard” and “brittle.” Liquids are fluidy, move around a little, and fill up containers, while the molecules of a gas are much farther apart than the molecules in a liquid.
Solids are often hard, liquids fill containers, and gases surround us in the air. Each of these states is also known as a phase.
Molecules can move from one physical state to another. This is called phase change.
Oxygen (O2) gas has the same chemical properties as liquid oxygen. The liquid state is colder and denser (less energy), but the molecules are the same. Water (H2O) is another example. A water molecule is made up of two hydrogen (H) atoms and one oxygen (O) atom. It has the same molecular structure whether it is a gas, liquid, or solid. Although its physical state may change because of different amounts of energy, its atomic structure remains the same.
The different types of matter can be distinguished through two components: composition and properties. The composition of matter refers to the different components of matter along with their relative proportions. The properties of matter refer to the qualities/attributes that distinguish one sample of matter from another. These properties are generally grouped into two categories: physical or chemical.
Organizational breakdown of chemical and physical properties of matter.