Hydrogen chloride is often used to help make a material found in plastic water pipes. It is produced when hydrogen gas and chlorine gas are mixed and heated.
Consider the following reaction:
1 molecule of hydrogen (H2) reacts with 1 molecule of chlorine (Cl2) to produce some amount of hydrogen chloride (HCl).
To find the amount of hydrogen chloride produced, first determine the number of each type of atom in the products.
Hint: During a chemical reaction, atoms are not created, destroyed, or changed from one chemical element to another.
Chemical element Number of atoms in reactants Number of atoms in products
H 2
Cl 2