Question detail
Write the balanced equation for the complete combustion of ethanol (C2H5OH).
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Alcohols
Question
Write the balanced equation for the complete combustion of ethanol (C2H5OH).
Answer
The balanced equation for the complete combustion of ethanol is C2H5OH + 3O2 → 2CO2 + 3H2O.
Explanation
This answer is strong because it correctly identifies the reactants and products of the combustion reaction, demonstrating an understanding of the chemical process involved. The question tests the ability to write balanced chemical equations, which is a fundamental skill in chemistry.
Common mistake
Combustion Equation Mistake
Students often forget to balance the combustion equation for alcohols, leading to incorrect stoichiometry.
To write the balanced equation for the combustion of ethanol (C2H5OH), use the formula: C2H5OH + O2 → CO2 + H2O. First, balance the carbon atoms: 2 CO2. Then, balance the hydrogen atoms: 3 H2O. Finally, balance the oxygen atoms: C2H5OH + 3 O2 → 2 CO2 + 3 H2O. The final balanced equation is C2H5OH + 3 O2 → 2 CO2 + 3 H2O.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.