L1 Types of Matter
Presentation
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Chemistry
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10th - 12th Grade
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Practice Problem
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Medium
+1
Standards-aligned
Pema Wangdak
Used 61+ times
FREE Resource
7 Slides • 7 Questions
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Types of Matter
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Chemistry is the study of matter:
Its composition, structure, properties, changes it undergoes, and the energy accompanying these changes.
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Matter:
is anything that occupy space and has mass.
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Pure substance is a type of matter which every sample has:
definite and fixed composition same unique sets of properties elements and compounds are examples of pure substance
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Elements: is a pure substance.
They are made up of identical atoms. They cannot be decomposed or broken down into simpler substances by physical or chemical methods.
Example: Au (Gold)
Ag (Silver)
Cl2 (Chlorine gas)
Br2 (bromine gas)
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Compound is a pure substance that:
is composed of 2 or more different elements chemically combined.
has a definite composition (fixed ratio) of all atoms in all samples (Law of definite composition)
can be decomposed (or broken down) into simpler substance by chemical method
has a unique set of properties in all samples
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Compound is a pure substance that:
is composed of 2 or more different elements chemically combined.
has a definite composition (fixed ratio) of all atoms in all samples (Law of definite composition)
can be decomposed (or broken down) into simpler substance by chemical method
has a unique set of properties in all samples
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Types of Matter
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