Write chemical equations for the reaction of calcium with the following substances, making sure that the numbers and kinds of atoms are the same on both sides of the equations. If no reaction occurs, write N.R.

(c) Br₂

Video transcript

Welcome back, everyone. Write the chemical equation for the reaction of magnesium solid and iodine gas indicate nr if no reaction occurs in this problem, we are dealing with mcneese with to the group two A. It is an alkaline earth metal. And also where given iodine, it belongs to the group seven A which consists of halogens. So whenever we are producing a reaction between a group to a metal and a diatomic halogen, we are observing a combination reaction. Therefore, we can say that this reaction actually occurs, right. So first of all, what we're going to do is is just write magnesium, we're going to add iodine gas. And essentially we want to predict the product because it's a combination reaction, we're going to produce only one ionic product. And to get that product, we want to recall that magnesium has a two plus charge and halogens, they essentially contain a negative 01 charge. So if we think about the Crisscross method, we want to add a subscript of two for the iodide ion to essentially balance the charges. And therefore our product for this problem would be magnesium iodide MG I two. We need two formal units of iodide to balance the two plus charge on magnesium. And of course, we're going to include the state that would be solid, right? Because we're not dealing with a solution. We're only using a solid and a gas to produce another solid. And that would be our final answer. Thank you for watching.