The lab procedure you just studied involves
several factors, listed below. Some are variable
and some are constant. Label each factor below V
for variable or C for constant.
initial number of radioactive nuclei
number of half-life cycles (time)
half-life of Lincolnium
number of protons in Lincolnium and
Memorium
number (or fraction) of Lincolnium atoms
DONE
Intro

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.