Unit 1: Some Basic Concepts of Chemistry Comprehensive Notes

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4 Terms

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classification of matter

Matter can be classified based on its composition and properties. The basic states of matter are solid, liquid, gas, and plasma

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States of Matter

solids have a definite shape and volume. Liquids have a definite volume but take the shape of their container. Gases have no definite shape or volume. Plasma is an ionized gas with high energy.

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Scientific Notation

A way of expressing numbers that are too big or too small to be conveniently written in decimal form. It is typically written as a×10ba×10b, where 1≤∣a∣<101≤∣a∣<10 and bb is an integer.

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Components of Scientific Notation

1. Coefficient (a): A number between 1 and 10 (including 1, but excluding 10).

  1. Base (10): The number 10, which is raised to a power.

  2. Exponent (b): An integer representing the number of places the decimal point must be moved to convert the number to standard form