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Rubidium metal reacts with iodine gas as described in the following equation:2Rb(s) + I2(g) → 2RbI(s)Initially, the reaction mixture contains 45.2 g Rb and 92.3 g I2. How many grams of the excess reactant remain after the reaction has occurred completely?

Rubidium metal reacts with iodine gas as described in the following equation:
2Rb(s) + I₂(g) → 2RbI(s)
Initially, the reaction mixture contains 45.2 g Rb and 92.3 g I₂. How many grams of the excess reactant remain after the reaction has occurred completely?