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Biology Chemistry of life, Organic Molecules

Biology Chemistry of life, Organic Molecules - Chemistry...

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Chemistry made easy Or Wait a minute……I thought this was Biology! So Why study Chemistry?
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A. To Understand Biology Chemical reactions are taking place in the human body at all times. Without these chemical reactions we would not be alive!
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B. The nature of life is explained by chemical reactions. If we are going to study living things and we want to understand how they work, we need to understand some chemistry.
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II. Atoms and Elements A. Everything is composed of elements 1. An element is the most simple and pure substance in existence. A substance cannot be broken down further than an element.
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(1) What makes elements different from each other is that they each have a different number of electrons = identity.
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(2) Atoms have a nucleus or center that is filled with protons & neutrons (Mass) around which electrons orbit, due to attraction of negative charges of electrons to the positive charges of protons in the nucleus.
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(3) The number of protons and electrons usually equal each other in an element . If numbers of protons and electrons differ the atom has a charge and is called an ion .
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B. Bonding
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