CHEM 1122 Study Guide - Final Guide: Alkaline Earth Metal, Atomic Number, Heat Capacity

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30 Oct 2014
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Chapter 3: cal- amount of energy, kcal- nutritional energy= 1000 cals, exothermic- reactions that release energy, combustion, endothermic- absorb energy from surroundings as they occur, use of cold pack, k= c+273, c= f-32/1. 8, heat capacity: q=mcdeltat. Ions: groups 1a and 2a loose electrons to form positive ions (cations, group 7a gains electrons to form negative ions (anions, use group number to determine ions. Ion charge- #protons- #electrons: protons and neutrons in nucleus of atom which give it a positive charge, electrons surround. Chapter 5: atomic elements- most elements, molecular elements- diatomic molecules, molecular compounds- made up of nonmetals, type i ionic compounds. Ionic compounds- metal and nonmetal: always form cation, based on group # [metal name + nonmetal base +ide: type ii binary compounds, cation and anion. [metal name (cation charge) nonmetal base + ide: molecular compounds two nonmetals. [numeric prefix + element + prefix+ element+ide: acids, compose of hydrogen and nonmetal form h when dissolved in water.

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