For the mineral quartz, identity the following: Luster: Hardness: Breakage: Color: Composition:

first one is the correct answer

it's filtration, but this is an assumption so my apologies if i got this

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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