A tri-cation of an element has 45 electrons. Approximately how many neutrons does this element have (round to nearest integer, i. e. no decimal places, you do not have to take into account isotopes).

i believe the answer is true.

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