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Write Lewis dot symbols for the following ions:
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EBK CHEMISTRY
- Consider the following compounds: BeCl 2 , MgBr 2 , and SrBr 2 . Answer the following questions based on expected periodic trends: (a) Which is expected to have the shortest ionic bonds? (b) Which is expected to have the highest lattice energy? (c) Which is expected to have the lowest melting point?arrow_forward3. How many valence electrons are in a C atom? an Cl atom? (a) Write the full Lewis structure for the CH2C2 molecule. Show all lone pairs. Pert (b) Write the geometric structure for the CH2CI2 molecule and name the geometry. (c) Determine if the CH2CI2 molecule has polar or nonpolar bonds using the following electronegativity: C = 2.5, H = 2.1, CI = 3.0. Re-draw the geometric structure below, but this time include partial charges and dipole arrows for any polar bonds present. Justify your assignments for polar or nonpolar bonds.arrow_forwardPlease don't provide handwriting solutionarrow_forward
- Draw Lewis diagrams for the following ions. In the formula the symbol of the central atom is given first. (Hint:The valence octet may be expanded for the central atom.)(a) BrO4 - (b) PCl6 - (c) XeF6+arrow_forward2. Draw the Lewis structures for each of the following ions or molecules. Give the number of electrons in each species. Remember to enclose ions in square brackets with the charge as a superscript outside the right bracket. (a) Br 20 (c) BrF 3 (e) PCI 4* (b) IOF 3 (I is the central atom) (d) ASF 3arrow_forwardElements in the same group of the periodic table often formoxyanions with the same general formula. The anions arealso named in a similar fashion. Based on these observations,suggest a chemical formula or name, as appropriate, for eachof the following ions: (a) BrO4-, (b) SeO32-, (c) arsenate ion,(d) hydrogen tellurate ion.arrow_forward
- A resident expert on electronegativity comes up to visit with you. He makes two claims (seen below) about electronegativity with relation to covalent bonding. Is the expert correct or can you refute him with your knowledge of electronegativity? (a) If a diatomic molecule is made up of atoms X and Y, which have different electronegativities, the molecule must be polar. (b) The farther two atoms are apart in a bond, the larger the dipole moment will be.arrow_forward(b) 8. Give the formal charges of atoms :0= C= --$- -Br .N. --arrow_forwardDraw the Lewis structures for each of the following ions or molecules. Give the number of electrons in each species. Remember to enclose ion s in square brackets with the charge as a superscript outside the right bracket. (a) SO 2 (b) XeO 2 F 2 (Xe is the central atom) (c) ClF 3 (d) ClO 2 F (Cl is the central atom) (e) BrO 4 -arrow_forward
- Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Mg“, Fe*, F", s?- 2+ 2+ Mg", Fe", F,arrow_forwardIonic Bonding 1. Show the transfer of electrons with ↓ notation in the reactions between the following pairs of elements to create an ionic compound. Show the elements as atoms, even though they may exist as diatomic or polyatomic species. (a) Ba and F (b) K and I (c) Cs and S (d) Ca and As (e) Li and N (f) Rb and Se (g) Sr and P (h) Al and Br 2. Write Lewis dot structures for atoms and ions of each of the reactants and products in Exercise 1.arrow_forwardneed help with the questions the arrows are pointing at SQ 3-The balanced chemical equation for the reaction of sodium bicarbonate and citric acid is below. 3 NaHCO3(aq) + C6H807(s) → Na3C6H5O7(aq) + 3H₂O(l) + 3CO2(g) = SQ 4-Write the Lewis Structure for all species in the net ionic equation. Reactants: Products: K SQ 5-Circle the bonds that are broken in the reactants and the bonds that are formed in the products.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning