Select the correct answer. Consider the following equilibrium system:
302(g) = 203(gKeq = 1
Which equation compares the concentration of oxygen and ozone?
OA. [02] = [031
OB. [02] = [03]
Ос.[02] = [03]312
OD. (02)2 = [03]

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

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