Question

Isopropanol burns in oxygen to yield carbon dioxide, water, and heat. Which word equation best represents this chemical reaction?
isopropanol Right arrow. carbon dioxide + water + heat
isopropanol Right arrow. carbon dioxide + water + oxygen
isopropanol + oxygen Right arrow. carbon dioxide + water + heat
isopropanol + oxygen + heat Right arrow. carbon dioxide + water

Answer 1

Answer:

isopropanol + oxygen Right arrow. carbon dioxide + water + heat

Explanation:

Word equation:

isopropanol + oxygen    →   carbon dioxide + water + heat

Chemical equation:

2C₃H₇OH  + 9O₂       →     6CO₂ + 8H₂O + Heat

The given reaction is combustion of isopropanol. Isopropanol burn in the presence of oxygen and produced carbon dioxide and water. Heat is also produced in this reaction.

The given reaction also follow the law of conservation of mass. There are equal number of moles of each element on both side of reaction equation thus mass remain conserved.

Answer 2

isopropanol + oxygen Right arrow. carbon dioxide + water + heat

The following information should be considered:

Word equation:

isopropanol + oxygen    →   carbon dioxide + water + heat

Chemical equation:

$2C_3H_7OH + 9O_2 \rightarrow 6CO_2 + 8H_2O + Heat$  

• The given reaction is combustion of isopropanol.
• Isopropanol should be burn with the presence of oxygen and generated carbon dioxide and water.
• Heat is also generated in this reaction.
• The given reaction also follows the law of conservation of mass

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