The given equation represents the reaction of sodium metal with water.
Sodium + Water → Sodium hydroxide + Hydrogen
Which of the following chemical equations represents a complete balanced chemical equation for the given word equation?
In a balanced chemical equation, the number of atoms of every element on both sides of the equation must be equal. Among the given alternatives, the equation in alternative D represents a balanced chemical equation for the given reaction as the numbers of afoms of sodium, hydrogen and oxygen on both sides of the equation are equal.
The given table shows that the number of atoms of each element on the reactant and product sides of the chemical equation.
Hence, the equation given in alternative D represents the balanced chemical equation for the given reaction.