Magnesium and Iodine Reactions

This video tutorial explains how to balance the chemical equation for magnesium (Mg) and iodine (I2) to form magnesium iodide (MgI2). It begins with an introduction to the equation, followed by a step-by-step process of counting atoms on each side to ensure balance. The tutorial also covers the concept of ionic charges, explaining why MgI2 forms instead of MgI. The video concludes with a summary of the balanced equation.

What is the product formed when magnesium reacts with iodine?

• Magnesium sulfate

• Magnesium oxide

• Magnesium iodide

• Magnesium chloride

How many iodine atoms are present on each side of the balanced equation?

• Three

• One

• Two

• Four

Why is the equation Mg + I2 → MgI2 considered balanced?

• Because there are more magnesium atoms on the left

• Because there are more iodine atoms on the right

• Because the equation is not balanced

• Because the number of each type of atom is equal on both sides

What is the ionic charge of magnesium in the compound MgI2?

• 2-

• 1-

• 1+

• 2+

Why does magnesium form MgI2 instead of MgI?

• Because iodine has a 2- charge

• Because magnesium has a 1+ charge

• Because iodine has a 2+ charge

• Because magnesium has a 2+ charge and iodine has a 1- charge