Consider the following reaction 2A + 3F₂ $\rarr$ 2AF₃. What is a reasonable guess for the identity element A A) Mg B) Al C) Si D) P E) None of the above

Question

Quizplus · Accepted Answer

Looking at the reactants, we see that A appears in two places, but there is no coefficient associated with it. This suggests that A is the identity element, which means that it will not take part in the reaction and will appear unchanged in the products. Comparing the atomic numbers of the elements in the answer choices, we see that Al has the closest atomic number to that of A, which suggests that it is the best choice.

Consider the Following Reaction 2A + 3F2 →\rarr→ 2AF3

Consider the Following Reaction 2A + 3F₂ $\rarr$ 2AF₃