nd order depends on the number of electrons being shared in a covalent bond and is one way of comparing bond strengths. A single bond a bond order of one, a double bond has a bond order of 2, a triple bond has a bond order of 3, and resonance between a single bond and ouble bond has a bond order between 1 and 2. The higher the bond order, the greater the bond strength and the shorter the length of bond. scratch paper, which you do not need to turn in, draw the structural formula for each species in the table below. Then refer to your uctural formulas to complete the table by telling whether or not each species has resonance and the bond order of the Si-O bonds in each ecies. Then rank the species from 1 through 4 in increasing order of Si-O bond strength, for with 1 for the species with the lowest bond ength and 4 for the species with the greatest bond strength. SPECIES RESONANCE? BOND ORDER RANK OF BOND STRENGTH SIO2 yes 1 SiO,4 no 2 SiO [ Select ) 3 3 SiO,2- [ Select ] between 1 and 2 4

ng & Formulas O DPresent rrange Tools Add-ons Help Last edit was 14 minutes ago Background Layout Theme Transition 111 11 | 21| 3 |I14 |15 | 1 6.I| 7 I .8 Le9 Naming lonic & Covalent Circle Ionic or Covalent, then write the Correct chemical name. Name S03 Toalc or Covalent Name KNO3 lonic or Covalent AMOVE Name CutOH)2 lonic or Covalent TYPE 11 ker notes 00

Molecule or lon SnCl4 #valence e y **NO3 #valence e 6 **PF6 #valence e 6 SbCl5 #valence e **N3 #valence e Lewis Structure No. of Holes Needed in the Central Atom No. of Regions of Electron Density on Central Atom Electron Geometry Molecular Geometry Sketch Molecule/lon Showing Molecular Geometry (show atoms only!) ** lons are treated in the same way as neutral molecules. (The charge is, of course, used in determining the number of electrons in the valence shell of the ion.)

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