Chemistry 1010 chap 6

pairs of electrons are around the central atom in SO2

1

how many electrons are used to draw the electron-dot structure for acetylene

10

Lewis dot structure for carbon monoxide?

4th one

Which covalent bond is more polar: a sulfur-bromine (S-Br) bond or a selenium-chlorine

A selenium-chlorine bond should be more polar because of a greater difference in effective nuclear charge.

Aluminum Oxygen compound

Al2O3

correct formula and bonding type for barium fluoride?

BaF2, ionic

contains a triple bond?

C2H2

contains two double bonds?

CO2

molecules would contain a dipole?

H-F

trigonal (triangular) planar electron geometry?

I only

polar molecule with a tetrahedral electron geometry?

I,II and III

Which of these substances is covalent compound

II, III and IV

describes a polar molecule

None

P, and hydrogen, H. What is its chemical formula?

PH_3

formula for strontium iodide

SrI2

correct Lewis dot structure for sulfur trioxide?

Third one

Which of these is the correct Lewis dot structure for nitrogen, N2?

first one

nonpolar molecule

molecular oxygen

valence electrons are there in the Lewis structure of NO3−1?

none of these

an ionic compound an example of a chemical compound?

yes