For each bond, show the direction of polarity by selecting the correct partial charges. BC-O C-F BF-O 1A H2A 8+ 8-- The most polar bond is 8 e 8 Li Be Na Mg 38 48 58 68 7888 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn 1A 0 H2A BA 3A 4A SA 6A 7A He BCNO F Ne Cl Ar Ga Ge As Se Br Kr 18 28 A1 Si 1B 28 Al Si P S Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Rf Ha Fr Ra Ac The element arsenic would be expected to form covalent bond(s) in order to obey the octet rule. Use the octet rule to predict the formula of the compound that would form between arsenic and hydrogen, if the molecule contains only one arsenic atom and only single bonds are formed. Formula: Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr 8A Li Be 3A 4A SA 6A 7A He BCNO F Ne Cl Ar Na Mg 38 48 58 68 7888 18 28 Al Si P S K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Rc Rf Ha Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr The element selenium would be expected to form covalent bond(s) in order to obey the octet rule. Use the octet rule to predict the formula of the compound that would form between selenium and fluorine, if the molecule contains only one selenium atom and only single bonds are formed. Formula:
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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