3. Cobalt (III) oxide reacts with potassium sulfide via a double replacement reaction in the presence of water. a. Would you expect these reactants to be ionic or covalent? Why? b. Write the electron configuration and draw full Bohr diagrams and Lewis structures for sulfur. c. Draw a Lewis diagram to show the bonding between potassium and sulfur and the resulting molecular formula of potassium sulfide.

Table E1: Names & Formulas of Covalent Compounds If you are given the name of the covalent compound, provide the correct formula. If you are given the formula of the covalent compound, provide the IUPAC name. Name Formula Sulfur dioxide   Tetraphosphorus decoxide     H2O   N2O5 Ammonia   Oxygen difluoride     BCI3   S2Br2 Chlorine     O2 Dinitrogen monoxide

Answer all 4 parts of the question

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What is the chemical formula for Manganese (II) Iodide? Show your steps.

QUESTION 1 Fill in the missing information: formulas for missing compounds and ions, systematic/modern names of compounds, and whether the compound is ionic (I), covalent (C) or both (B). { NOTE: i) Write subscript numbers in the formulas as if you are writing letters in a word (e.g., Mg3N2 should be written as Mg3N2). ii) Do not put parentheses around monatomic ions but put them around a polyatomic ion if there is more than one in the formula (e.g. Na2C03 should be written as Na2CO3 but Ca(NO3)2 as Ca(NO3)2. )} (Use the letters I, C, or B to indicate the type of bonding in the compound.) Compound Formula Name of compound lonic (I), Covalent (C) or Both (B)? lons 2- 1+ NH 4 & SO 4 4+ Sn & CI 1- 2+ Fe & CH 3 CO0 1- AI 3+ & p 3- AIP

Question 38: Answer Letters A and F ONLY Question 40: Answer Letter B ONLY

Which chemical formula and name DO NOT match?   Question 12 options:   H3PO4 : phosphoric acid   P2O5 : diphosphorous pentoxide   PI3 : phosphorus(III) iodide