Oxygen gas reacts with hydrogen gas to form liquid water.


Writing The Unbalanced Chemical Equation for The Formation of liquid water

Writing the unbalanced chemical equation is accomplished by replacing the chemical names with the corresponding chemical formula in the word equation. This preveously determined word equation is “oxygen + hydrogen ➝ water”. The formula for the oxygen is O₂  Since oxygen was stated to be a gas, (g) is placed after the formula for sulfur: O₂(g). Hydrogen was stated to be a gas: H₂(g). And liquid water is H₂O(l). The unbalanced equation is O₂(g) + H₂(g) ➝ H₂O(l).


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