List any two information which make a chemical equation more informative.
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Answered by
2
Answer:
1) Write the physical stat of the substance (solid, liquid, gaseous, aqueous)
2) Specify the physical attributes (colour, smell)
Explanation:
Answered by
2
Answer:
Chemistry- Chemical reaction
Explanation:
Chemical equations can be made more informative by the
following characteristics:
Physical state
There are three different states which are solid, liquid and gaseous.
If the substance exists in solid, liquid and gaseous states then it is represented by (s), (aq), (g) respectively.
CaO(s) + H₂O(l) → Ca(OH)₂(aq)
Balancing of an equation
It is necessary to balance equation
N₂ + H₂ → NH₃ (skeleton equation)
N₂(g) + 3H₂(g) → 2NH₃(g) (balanced equation)
Evolution of gas
If the gas is liberated in a reaction, it is indicated by an arrow upward
Zn(s) + H₂SO₄(aq) → ZnSO₄(aq) + H₂(g) ↑
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