Asample of rock from california contains 1.116g of iron and 0.48 g of oxygen.

determine the percent composition of both element in the sample.

Explanation:

Percent composition is percentage by the mass of element present in the compound.

Given , Mass of iron = 1.116 g

Mass of oxygen = 0.48 g

Total mass of the rock = 1.596 g

idk

explanation:

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