Which reactant is limiting?

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Explanation:

1. Balanced chemcial equation:

2. Theoretical mole ratio

It is the ratio of the coefficients of the reactants in the balanced chemical equation:

3. Actual ratio

It is ratio of the moles available to reat:

4. Comparison

Then, there are more aluminum available than what is needed to react with the 9 moles of iodine, meaning that the aluminum is in excess and the iodine will react completely, being the latter the limiting reactant.

Conclusion: iodine is the limiting reactant.

5. How much aluminum iodide will be produced?

Use the theoretical mole ratio of aluminum iodide to iodide:

i think its 100

i hope this !