Question

In this reaction, ethane is burned in the presence of oxygen (O2 O 2 ) to form carbon dioxide (CO2 C O 2 ) and water (H2O H 2 O ). ____C2H6(g)+____O2(g)→____CO2(g)+____H2O(g) _ _ _ _ C 2 H 6 ( g ) + _ _ _ _ O 2 ( g ) → _ _ _ _ C O 2 ( g ) + _ _ _ _ H 2 O ( g )

Answer 1

Answer:

C₂H₆(g) + 7/2 O₂(g) → 2 CO₂ + 3 H₂O

Explanation:

To balance equations of combustion (Chemical + O₂ producing CO₂ and water you must do:

1. Write as CO₂ as carbons in the chemical you have:

For the reaction:

C₂H₆(g) + O₂(g) → CO₂ + H₂O

As you have 2 carbons in ethane:

C₂H₆(g) + O₂(g) → 2 CO₂ + H₂O

2. Write the half of H₂O as hydrogen you have:

There are 6 hydrogens → You must place 3 H₂O:

C₂H₆(g) + O₂(g) → 2 CO₂ + 3 H₂O

3. The last step is to write the half of oxygens you have in products.

4 Oxygens from CO₂ and 3 from water:

C₂H₆(g) + 7/2 O₂(g) → 2 CO₂ + 3 H₂O