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How do indicate the conditions of the re...

How do indicate the conditions of the reaction in a chemical equation ?

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1) The reaction conditions such as temperature, pressure, catalyst etc. are indicated above and/or below the arrow mark in the equation.
For example,
`2AgCl_((s)) overset("Sunlight")rarr 2Ag_((s))+Cl_(2(g))`
2) The chemical equation of photosynthesis is
`6CO_(2(g))+6H_(2)O_((l)) overset("sunlight")underset("chlorophyll")rarr C_(6)H_(12)O_(6(s))+6O_(2(g))`
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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-ESSENTIAL MATERIAL FOR EXAMINATION PURPOSE
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