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Name: Chapter 1 Notes : The Basic Concepts of Chemistry
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Chapter 1 : Basic Concepts of Chemistry 1 – 1 Chemistry and Its Methods » Chemistry is about the change from one substance to another and understanding how the change occurs » Cinnabar and Mercury * If you heat cinnabar (mercury (III)) in air it changes into orange mercury (II) oxide, which if you heat more, it decomposes to mercury and oxygen gas (Figure 1.1) » Forming a Chemical Compound * If you combine sodium metal (Na) and yellow chlorine gas (Cl ) you2get sodium chloride (NaCl – aka table salt) (Figure 1.2) » Chemistry is essential to our understanding of biology, geology, medicine, physics, etc. Hypotheses, Laws, and Theories »