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Question
What are the various ways in which a chemical equation can be made more informative? Give examples to illustrate your answer.
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Solution
A chemical equation can be made more informative by:
- Indicating physical states of reactants and products.
- Indicating heat change in the reaction.
- Indicating the reaction condition.
Example:
where,
(s) and (g) signifies solid and gaseous state of compounds, respectively.
Heat written on reactants' side signifies that the reaction consumes heat.
MnO2 written above right-handed arrow signifies reaction takes place in the presence of MnO2.
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