COMD 2081 Chapter : Fluency
Document Summary
Scientific method: observation, generalization or model, predictions or hypothesis, test. What is life: characteristics of living systems, organization, energy use, development, reproduction, evolve, respond to environment. What determines solubility: like dissolves like, like in terms of polarity, polar solutes dissolve in polar solvents non polar solutes dissolve in non polar solvents. What determines the polarity of a molecule: the type of bonds within a molecule, they are the result of electrical attractions between atoms. Ionic bonds: form when atoms completely gain and lose electrons, strongest bonds when dry. Covalent bonds: forms when atoms share electrons, strongest bond in water. Are covalent polar covalent and ionic bonds really different: the fundamentals of what holds the atoms together is really the same. Ionic: when differences are 1. 7 or greater the bond is usually ionic, covalent, when differences are less than . 5, polar covalent, anything in between. Weak bonds: bonds which are not involved in making a substance.
