Question

in the partially balanced reaction illustrated below, how many additional complete x molecules are required to balance the reaction?

Answer 1

To balance this reaction it is required to have 2 more complete x molecules, one y molecule, and two z molecules.

What is to balance a reaction?

Balancing a reaction implies adding molecules in the reactants or products to make sure the same number of molecules in the reactants are the same number of each kind in the products.

The original reaction presented is:

• 2 (X3) + 2 (Y2) = 4 (YX2)    or
• 6 x molecules + 4 y molecules = 4 y molecules and 8 x molecules

This shows the reaction is not balanced because there are more x molecules than the ones at the beginning of the reaction.

What molecules need to be added?

To make the reaction balanced we need to add:

• 2 more X molecules.
• 1 more Y molecule.
• 2 more XY molecules.

• 4 (X3) + 3 (Y2) = 6 (YX2)
• 12 x molecules + 6 y molecules =  6 y molecules + 12 x molecules.

Note: This question is incomplete because the equation is not given. Here is the missing part:

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