chem outline

chem outline - Basic cellular chemistry What is to be hoped...

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Basic cellular chemistry What is to be hoped is a review of basic chemical principles Atomic structure Atoms: Electrons, protons, neutrons, isotopes, ions Chemical bonds Ionic, covalent Ionic bonds : electrons exchanged Covalent bonds : electrons shared Chemical equilibrium Mass cannot be created nor destroyed and therefore when chemical reactions are written they have to be balanced in both kind and number of molecules : 2H 2 + O 2 2H 2 O 2H 2 O 2 2H 2 O + O 2 Equilibrium : starting materials (reactants) and ending materials (products) go back and forth and are in equilibrium. Equilibrium may favor the reactants or the products Water H and O covalently bound creates a polar molecule : partially positive and negative on opposites sides These partial charges cause the molecules to “stick” to each other Acid / base chemistry Water can also dissociate into ions : H + and OH - Acids : chemicals contributing H + Bases : chemicals contributing OH - Acids and bases mixed together produce salts
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chem outline - Basic cellular chemistry What is to be hoped...

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