CHEM 101 Chapter Notes - Chapter 1: Sony Ten, Life-Cycle Assessment, Metric Prefix
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Chemistry: the study of matter its composition, its properties, and the charges it undergoes: energy. The energy produced by combustion (lighting fossil fuels) helps light our homes. There are chemical changes that are involved in the combustion of petroleum and other fossil fuels. Physical change: a transformation of matter that occurs without any change in chemical composition: distillation: separating a liquid by boiling it and condensing the vapor that results. Chemical change: a process that produces substances with new chemical compositions: combustion: the reaction of a fuel with oxygen to produce, cleaning heat and light. The active ingredients in soap are types of chemicals called surfactants. Surfactants: shortened form of surface-active agent; a chemical that accumulates at a liquid"s surface and changes the properties of that surface. Chemists incorporate surfactants into shampoos, shaving creams, laundry detergents, toothpastes, and multipurpose contact lens solutions: clothing and polymers. Polymers: a very large molecule formed by the repeated: food combination of much smaller molecules.
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