aCETYLENE REACTS WITH OXYGEN GAS TO PRODUCE CARBON DIOXIDE GAS AND WATER VAPOR

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The balanced chemical equation for the reaction between acetylene (C2H2) and oxygen gas (O2) to produce carbon dioxide (CO2) gas and water vapor (H2O) is:

2C2H2 + 5O2 → 4CO2 + 2H2O

To understand how and why this reaction occurs, let's break it down:

1. Identify the reactants: Acetylene (C2H2) and oxygen gas (O2). Acetylene is a hydrocarbon compound that contains carbon (C) and hydrogen (H) atoms, while oxygen is a diatomic molecule with two oxygen (O) atoms.

2. Determine the products: Carbon dioxide (CO2) gas and water vapor (H2O). Carbon dioxide is a molecule containing one carbon atom and two oxygen atoms, while water vapor is a gaseous form of water containing two hydrogen atoms and one oxygen atom.

3. Write the balanced equation: The equation should have the same number of atoms for each element on both sides. By balancing the equation, we obtain:

2C2H2 + 5O2 → 4CO2 + 2H2O

This means that for every 2 molecules of acetylene and 5 molecules of oxygen gas, 4 molecules of carbon dioxide and 2 molecules of water vapor are produced.

It's essential to remember that the balanced equation represents the stoichiometry of the reaction, indicating the exact ratio of reactants and products. This equation allows us to determine the number of molecules or moles involved in the reaction.

If you have specific quantities or want to calculate the amount of reactants required or products formed, you can use stoichiometry by applying the molar ratio from the balanced equation.