Final answer:
In the given chemical reaction between calcium and iodine, when 3 moles of calcium and 4 moles of iodine are used, 4 moles of calcium iodide can be produced.
Step-by-step explanation:
The balanced equation for the reaction between calcium and iodine is:
Ca + I2 -> CaI2
From the equation, we can see that 1 mole of calcium reacts with 1 mole of iodine to produce 1 mole of calcium iodide.
Given that we have 3 moles of calcium and 4 moles of iodine, we can use the stoichiometry of the reaction to determine the number of moles of calcium iodide that can be produced.
- First, we determine the limiting reactant by comparing the moles of calcium and iodine. Since we have more iodine than calcium, calcium is the limiting reactant.
- Next, we use the stoichiometry of the reaction to calculate the moles of calcium iodide. Since 1 mole of calcium reacts with 1 mole of iodine to produce 1 mole of calcium iodide, we can generate a ratio:
1 mole calcium iodide / 1 mole iodine
Finally, we multiply the ratio by the number of moles of iodine:
1 mole calcium iodide / 1 mole iodine * 4 moles iodine = 4 moles calcium iodide
Therefore, with 3 moles of calcium and 4 moles of iodine, you can produce 4 moles of calcium iodide.