1.1. Define organometallic compounds. 1.2. Why are the heavy metals tin (Sn), lead (Pb) and mercury (Hg) as well as their organometallic forms considered dangerous pollutants? 1.3. Discuss the term biomagnification with regards to methyl mercury (MMHg) 1.4. Discuss, with the aid of a diagram, the biogeochemical cycle of mercury; Hg(0) 1.5. With regards to the formation of methylmercury, why is the Hg-C bond unusual in organic chemistry?

PCl3(g) + Cl2 (g) --><-- PCl5(g) A. Use a bond energy to find deltaHo for the reaction. Cl - Cl, 339 kJ/mole; P - Cl, 289 kJ/mole. B. Calculate the value of deltaSo for the reaction.                                                  So(PCl5) = 364.2 J/mol * K; So(PCl3) = 311.6 J/mol * K; So(Cl2) = 165.2    J/mol * K.

1. Mark the following statements (A-E) as true or false A. The halogen bond dissociation energy decreases in the row Cl2 Br2 I2 because of repulsion between the electrons in the lower shells.  B. The melting points of the dihalogens increase down the group because the interactions between the dihalogen molecules get stronger C. The electronegativity of the halogens decreases down the group because of the decrease of the electron affinity and the increase of the ionization energy.   D. The unusually low bond dissociation energy of the F2 molecule is a direct result of the high electronegativity of fluorine   E.  The high reactivity of fluorine is in part due to the low bond dissociation energy of the F2 molecule

Chemistry 3. Calculate the dissociation enthalpy of the S-F bonds in SFs using the following data: D(S-S) = 226 kJ/mol; D(F-F) = 155 kJ/mol, x (S) = 2.58 and xº(F) = 3.98. a) 379 kJ/mol b) 188 kJ/mol c) 188 eV d) 379 kJ/mol e) 204 kJ/mol 4

Watch Free G → M Gmail X Google Docs app.101edu.co X G periodic table. Aktiv Chemistry Bb Courses - Blackb.... o=U X +CI-CI с AE Aerie Women's X Calculate the enthalpy of the reaction below (AHrxn, in kJ) using the bond energies provided. CO(g) + Cl₂(g) →→ CI₂CO(g). Bond Type CEO C=O C-CI CI-CI C-C Bond Energy (kJ/mol) 1072 799 339 243 G cocktail dress 346 X Question 30 of 30 i f Come Back! X MacBook Pro G Search or type URL Aktiv Chem

Explain why ionic solids are conductive when they’re dissolved in water, but molecularsolids are not (In full sentences and detail sufficient for a 1st year General Chemistry course). If you melted the two types of materials, would molten salt or moltenmolecular compounds be conductive?

1. Predict whether iodine (1₂) is more soluble in liquid ammonia (NH3) or in carbon disulfide (CS₂). To do this, draw the Lewis dot structure of each compound listed. Include bond dipoles and overall molecular dipoles if present.