Identify the number of electrons each of the following atoms needs to gain or lose to have a stable outer electron configuration. sodium (Na):
strontium (Sr):
sulfur (S):
astatine (At):

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

catya your not at all which answer i've seen you do this on another question!