الرئيسية » Simplified Chemistry (صفحه 30)

Simplified Chemistry

Energy

Like matter, energy can be classified in different ways. For example, energy can either be kinetic or potential. Kinetic energy is energy of motion. Gases are made of molecules that have more kinetic energy than molecules in the solid phase of that substance. For example, water molecules in steam have …

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Properties of Matter

Matter is characterized by its properties. There are two kinds of properties: Chemical properties describe the abilities of a substance to undergo chemical reactions and to form new substances. Physical properties are qualities such as color, smell, taste, hardness, density, boiling and melting point, the conduction of electricity, and the …

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Nature and Scope of Chemistry

Chemistry: is the study of matter and the changes that matter undergoes. Matter is made up of almost infinitesimally small building blocks called atoms. Atoms can combine together to form molecules. Molecules of a few familiar substances are represented here. In later chapters you will learn more about how atoms combine to form molecules, and …

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