$$$ Quiz $$$ Covalent Bonding and Naming

A bond in which electrons are shared. covalent

A bond in which electrons are exchanged or taken. ionic

How many valence electrons are in an atom of selenium? 6

Does PCl 3 break the octet rule? Part 2: Draw the lewis structure on the board. no

True or False: The pair of electrons in ammonia not involved in bonding is called the “outer pair” ? False, lone pair or unshared pair

What type of bond forms when an “s” orbital overlaps with an s, p, or hybrid orbital? Sigma,

Does the element iodine exist as a monotomic, diatomic, or triatomic molecule? diatomic

What type of orbital and how many of these orbitals are needed to make a pi bond. “p” orbital, 2

Write down the prefixes (from 1-10) used in naming binary molecular compounds. Mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca

Draw a hydrogen bond on the board.

A triple bond contains how many electrons? 6

CsF, H 2 O, ZnS, Ba I 2 Which one of these compounds is a molecular (covalent) compound? H2OH2O

Give the hybridization of each carbon atom in the following molecule? sp 3 sp 2 sp

What is the shape of AsF 3 ? Trigonal pyramidal

What is the shape of GeCl 4 ? Tetrahedral

What is the shape of SeCl 2 ? Bent or Angle

What is the shape of AlCl 3 ? Trigonal Planar

What is the shape of CS 2 ? Linear

What is the shape of PBr 5 ? Trigonal Bipyramidal

Which one of these is the most polar bond? C-O or C-F or C-Cl or C-N C-F, polar covalent bond

What type of hybrid orbital exists in a methane molecule? sp 3

Name the four intermolecular forces that we recently talked about. Dipole-dipole Ion-dipole Dispersion forces (London) Hydrogen bonding

Which one of these forces is the weakest? Dipole-dipole Ion-dipole Dispersion forces (London) Hydrogen bonding

Write the formula for nitrogen trioxide. NO 3

Write the formula for diphosphorus pentabromide. P 2 Br 5

Write the name of the compound, H 2 O 2. Dihydrogen dioxide, hydrogen peroxide

Write the name of the compound, Si 2 Cl 7. Disilicon heptachloride

What is the chemical formula of tin(IV) carbonate? Sn(CO 3 ) 2

A bond where electrons are shared is known as a _______ bond? covalent

Is there such a thing as S 3- ? No, only S 2-, sulfide

Draw the electron dot structure of silicon?

How many valence electrons does aluminum have? three

Draw the lewis structure for SCl 2

Draw the lewis structure for AsH 3

Draw the lewis structure for HSCN

Is CHCl 3 a polar or nonpolar molecule?

Is BCl 3 a polar or nonpolar molecule?

Is NO 2 a polar or nonpolar molecule? What’s its geometry? Does it have resonance structures? Show on board. Polar, bent

Draw the electron dot structure of antimony ?

What is the chemical formula of ammonium hydroxide? NH 4 OH