how to make a chemical equation more informative
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Answered by
14
Dear friend,'here is the answer for your question.
Chemical equations can be made more informative by expressing the following characteristics of the reactants and products.
Physical state
ii) Heat exchange (exothermic or endothermic change)
iii) Gas evolved (if any)
iv) Precipitate formed (if any)
i) Expressing the physical state : The physical state of the substances may be mentioned along with their chemical formulae. The different states i.e., gaseous, liquid and solid states are represented by the notations (g), (Z) and (s) respectively. If the substance is present as a solution in water, it is represented as (aq).
ii) Heat exchange : Heat is liberated in exothermic reactions arid heat is absorbed in endothermic reactions.
iii) Gas evolved : If a gas is evolved in a reaction, it is denoted by an upward
arrow or (g).
iv) Precipitate formed : If a precipitate is formed in the reaction, it is denoted by a downward arrow....
Hope this helps you mate.
Chemical equations can be made more informative by expressing the following characteristics of the reactants and products.
Physical state
ii) Heat exchange (exothermic or endothermic change)
iii) Gas evolved (if any)
iv) Precipitate formed (if any)
i) Expressing the physical state : The physical state of the substances may be mentioned along with their chemical formulae. The different states i.e., gaseous, liquid and solid states are represented by the notations (g), (Z) and (s) respectively. If the substance is present as a solution in water, it is represented as (aq).
ii) Heat exchange : Heat is liberated in exothermic reactions arid heat is absorbed in endothermic reactions.
iii) Gas evolved : If a gas is evolved in a reaction, it is denoted by an upward
arrow or (g).
iv) Precipitate formed : If a precipitate is formed in the reaction, it is denoted by a downward arrow....
Hope this helps you mate.
Amy2512:
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Answered by
4
Hey!
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Try to add:
=>The state of particular reactant or product i.e solid, aqueous and gas. ( liquid should be used for water.
=> write the name of the element or compound below the the equation / reaction.
=> write the amount of the reactant or product if given.
=> show the temperature above the arrow.
You can also write if it is N.T.P ( normal temperature and pressure)
Or you can write S.T.P ( standard temperature and pressure)
=> you can write the type of chemical reaction taking place. ( decomposition, combination, photosynthetic, light reaction et cetera)
=> furthermore you can add heat or energy in exothermic reaction.
=> this is a great example in attachment :
____________________________________
______
Try to add:
=>The state of particular reactant or product i.e solid, aqueous and gas. ( liquid should be used for water.
=> write the name of the element or compound below the the equation / reaction.
=> write the amount of the reactant or product if given.
=> show the temperature above the arrow.
You can also write if it is N.T.P ( normal temperature and pressure)
Or you can write S.T.P ( standard temperature and pressure)
=> you can write the type of chemical reaction taking place. ( decomposition, combination, photosynthetic, light reaction et cetera)
=> furthermore you can add heat or energy in exothermic reaction.
=> this is a great example in attachment :
____________________________________
Attachments:
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