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3 Cards in this Set
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1.1: The Nature of Chemistry |
-Chemistry is the study of matter and its interactions. It is also a process for acquiring knowledge.
-Chemistry involves both experimenting in the macroscopic world and theorizing about the microscopic world.
-The interplay between empirical knowledge and theoretical knowledge is critical in the study of Chemistry.
-The International Union of Pure and Applied Chemistry (IUPAC) sets rules and standards for chemists worldwide. |
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1.2: Atomic Structure |
Matter: Anything that has mass and takes up space Philosophers Democritus: matter is composed of tiny, indivisible particles called atoms Vs. Aristotle: all matter is made up of four elements (earth, fire, air, water) Atom: the smallest particle of an element Element: a pure substance consisting of one type of atom Philosophy and Science Philosophers come up with their ideas based on intuition and reason Scientists come up with their ideas through experimentation using tools and technology Alchemists explored the nature of matter intensely and made many technological advances Dalton's Atomic theory Dalton's atomic theory was based on the experimental work of many other scientists who used instruments that were invented to precisely measure mass and volume: - all matter is made up of tiny, indivisible particles called atoms - all atoms of an element are identical - atoms of different elements are different - atoms are rearranged to form new substances in chemical reactions, but they are never created or destroyed Dalton's model: Billiard Ball (atoms is a featureless sphere) Thomsin |
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