CHM 151 Week 11

Electron Geometry

100

BCl₃

trigonal planar

200

SH₂

tetrahedral

300

SF₄

trigonal bipyramidal

400

XeF₄

Octahedral

Molecular Geometry

100

CO₂

linear

200

BCl₃

trigonal planar

300

SH₂

Bent

400

XeF₂

linear

Polar or Non-Polar

100

I₂

Non polar

200

HCl

Polar

300

PH₃

Non polar

400

CCl₂O

Polar

Conceptual

100

What does endothermic mean?

Energy is absorbed

200

What does exothermic mean?

Energy is released

300

What is electronegativity?

Tendency of an atom to attract electrons

400

Explain what a net ionic equation is. What is in a net ionic equation and what isn't?

Equation that only shows what reacted

Contains the solid and the individual elements that produce the solid. Includes charges and states.

Does not include spectator ions

Miscellaneous

100

Water molecules exchange at a rate of 4.89x10-5 times per second. What is the rate per minute?

0.003 times/min

200

70.20 + 37.147 - 3.40 x 3.221 =

In correct sig figs

96.4

300

What is the frequency of a particle that went from n=3 to n=5?                        

Given RH=2.179 x 10-18

2.34 x 10¹⁴

400

 Find the empirical formula if the compound is  43.7% phosphorus and 56.3% O

P₂O₅