Chemical Equilibria, Acid-Base Chemistry, and Solubility
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A-Level Chemistry Q & A Practice
1 of 5 free exam-style exercises in this topic
Calculate Kc for H₂(g)+I₂(g)⇌2HI(g).
equilibrium concentration / mol dm⁻³
H₂
I₂
HI
value
0.20
0.30
1.20
Select one option.
A
8.0
B
12
C
24
D
16
E
72
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