The volcano pictured above is an example of
a. a shield volcano with a characteristic gentle, fountain eruption
b. a cinder volcano with a characteristic spewing of volcanic cinders
c. a shield volcano with a characteristic violent, destructive eruption

a. a shield volcano with a characteristic gentle, fountain eruption

Explanation:

I just did the test and both b & c is wrong

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

the answer is c.the valence of the atoms combine .