How would you know if the material is harmful or useful to you ?

If the material is harful to you, you would know that it can bring danger to people and the environment. If the material is useful, it serves a purpose you see everyday.

Explanation:

k

explanation:

k

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

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