Describe water as an inorganic compound and universal solvent

Describe water as an inorganic compound and universal solvent

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Describe water as an inorganic compound and universal solvent. Water has several important properties: o high heat capacity – absorbs and releases large amounts of heat before changing appreciably in temperature itself. This prevents sudden, severe changes in body temperature from vigorous activity. o high heat of vaporization – large amounts of heat are needed to break water’s hydrogen bonds and allow it to change from a liquid to a gas (evaporation). This makes perspiration and effective cooling mechanism. o polar solvent properties – the universal solvent. The chemical reactions of the body depend on the reactants being dissolved in water. Since water molecules are polar, ionic compounds and other small reactive molecules dissociate in water, causing the substance to dissolve. Water also forms hydration layers around large charged molecules, such as proteins. o reactivity – decomposition reactions by hydrolysis; large molecule assembly by dehydration synthesis Describe pH scale, buffers, acids and bases. Acids are substances that release hydrogen ions (H + ) in detectable amounts. Hydrochloric acid (HCl) is found in the stomach. Bases take up hydrogen ions in detectable amounts and are characterized by the presence of hydroxyl ions (OH - ). Bicarbonate ion is an important base in the
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This note was uploaded on 11/22/2011 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Describe water as an inorganic compound and universal solvent

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