Download Review (Chapter 1) 1) Indicate if the following statements are true

Review (Chapter 1)
1)
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
(
Indicate if the following statements are true ( √ ) or false ( X )
) Fishhook arrows are used to indicate the movement of a pair of electrons.
) The angle between sp2 hybrid orbitlas is 104.5.
) Bromine is more electronegative than chlorine.
) Nitrogen is less electronegative than oxygen.
) The valence of silicon is 4
) Sodium is more electropositive than lithium.
) increasing atomic size increases the electropositivity of metals.
) Polarity of bonds depends on their atonmic size.
) Polarity of molecules depends on their melting points
) The electronegativity increases across a period from left to right
) Structrural isomers differ in the arrangement of atoms
) constitutional isomers are structural isomers
) structural isomers have different emperical formuls
) double headed arrows are used to indicate reversable reactions
) The carbon in tetrabromomethane is SP4 hybridized
) The carbon-carbon bond in propane is formed from Sp3 and S orbitals
) Cyclic organic compounds contains always heteroatoms
) Alkanes have only one double bond
2)
* Draw a Lewis structure for the following compounds, and assign the
formal charge for the central atom
PCl3, H2S, CBr4, XeF4, H3O+, PO43-,
* Draw the orbital picture of the following
Methane, bromomethane, ethane, hexachloroethane
* Draw all possible structural isomers for the compounds having the
following formulas
C2H4Br2, C2H3Cl3, C3H7F, C3H6I2
* Answer questions 1.53 - 1.55 from your book
Good luck