Hydrogen + chlorine form hydrogen cloride gas
Balance it
To balance the equation for the reaction between hydrogen (H2) and chlorine (Cl2) to form hydrogen chloride (HCl) gas, you need to ensure that the number of atoms of each element on both sides of the equation is equal. Here's how:
1. Write down the unbalanced equation: H2 + Cl2 → HCl.
2. Start by balancing the hydrogen atoms. Since there are two hydrogen atoms on the left side and only one on the right side, you need to multiply HCl by 2: H2 + Cl2 → 2HCl.
3. Next, balance the chlorine atoms. There are two chlorine atoms on the right side, so you need to put a 2 in front of Cl2: H2 + 2Cl2 → 2HCl.
Now the equation is balanced, with an equal number of hydrogen and chlorine atoms on both sides: H2 + 2Cl2 → 2HCl.
By following this step-by-step process, you can balance chemical equations for various reactions.