Go to Insert tab. Step 2 Now click the Layout tab and then click the Formula button. When you write a chemical equation from a word equation the reactants always go on the lefthand side of the equation while the reactants are on the righthand side.
However it will not be very easy and could be very time consuming.
Click on Equation at the top right corner. In older versions of Word this appears as the Layout tab of the Table Tools contextual tab in the Ribbon. This will bring up the Formula dialog with a default of SUM LEFT. For shortcut you can press Alt sight together Click on the equation button on the far right.