![]() In the above equation Na and O are balanced, Hydrogen is not. Step-2 : Pick an element to balance the equation. Step-1 : Examine the number of atoms of different elements present in unbalanced equations. How to balance chemical equations step by step :Ī number of steps are involved in balancing a chemical equation, The number of atoms of elements on both sides of a chemical equation should be equal in accordance with the law of conservation of mass. It is called a skeleton chemical equation. In equation (i), the number of atoms of Zn, H, S and O are equal on both sides, i.e., the equation is balancedīalanced Equations : The equations in which atoms of various elements on the reactants’ and the products side are equal.Įquation (ii) is not balanced because the number of hydrogen atoms in not equal on both sides. Observe the following two chemical equations : Therefore, multiply magnesium on the LHS by 2. Now, the number of oxygen atoms is balanced but the number of magnesium atoms is not. To balance oxygen on both sides, multiply RHS by 2, i.e., Step 4: The number of atoms of the elements are Element Step 3: Replacing the names with symbols and formulae, we get the chemical equation as Here, the reactants are magnesium and oxygen. Step 1: Magnesium burns in oxygen to give magnesium oxide. Keeping these steps in mind, let us now write the chemical equation for the formation of magnesium oxide. This is a balanced equation as the number of atoms of X and Y on both sides is equal. Now, the number of atoms of Y is balanced but not the number of atoms of X. ![]() To balance Y on both sides, multiply RHS by 2, i.e., The number of atoms of elements X and Y in the above-mentioned equation is shown below. The word equation for this reaction would be For example, reactants X and Y2 react to form a compound XY. The first step in balancing an equation is to count the number of atoms of each element on both sides of the equation. The process of making atoms of various elements equal in an equation on either side is called balancing.
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