Steps for writing a chemical formula Step 1: First, you have to decide the type of the bond. Step 2: Now, write down the symbol of the polyatomic ion or the element. Step 3: Now, if the prefix was used, you’ll have to add a subscript.What is the equation for chemistry?
It's common to indicate the state of matter in a chemical equation by including parentheses and an abbreviation right after a chemical formula. This can be seen in the following equation: 2 H 2(g) + O 2(g) → 2 H 2O(l) Hydrogen and oxygen are indicated by (g), which means they are gases.