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Introduction to Chemistry: Understanding Matter and Its Characteristics

This chapter introduces the fundamental concepts of chemistry, focusing on matter, its properties, and the changes it undergoes. Matter is defined as anything that has mass and occupies space, with mass being a measure of the amount of matter. Weight, on the other hand, includes the effect of gravity. Additionally, the chapter explores the submicroscopic nature of atoms, the basic building blocks of matter, which are so small they cannot be seen with optical microscopes. Understanding matter's structure is essential for studying chemistry.

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Introduction to Chemistry: Understanding Matter and Its Characteristics

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  1. Chapter 1 Introduction to Chemistry

  2. Chemistry: the study of matter and the changes that it undergoes

  3. I. Matter and its Characteristics • Matter is anything that has mass and takes up space • Mass is a measurement that reflects the amount of matter

  4. A. Mass and weight • Weight is a measure not only of the amount of matter but also of the effect of Earth’s gravitational pull on that matter http://www.exploratorium.edu/ronh/weight/

  5. Gravitational force is not the same everywhere on Earth and actually becomes less as you move away from sea level • Scientist use mass to measure matter so they can accurately compare measurements across the world

  6. B. Submicroscopic atoms • Most of matter is macroscopic – you do not need microscopes to see it • Matter can be broken down to more than 100 types of elements • Elements are made up of particles called atoms - atoms are so tiny, they are submicroscopic – they cannot be seen even with optical microscopes • The structure of matter is explained by atoms and the changes they undergo http://www.youtube.com/watch?v=t4Tst9DZFPI

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