Is a reaction not balanced if its physical states are not written in brackets @Kainui

Question

anonymous · Answer

@aum

kainui · Answer

What do you mean? What brackets?

anonymous · Answer

Like wether it is in liquid state or gaseous state
(l) , (g) like these

kainui · Answer

I don't think the state it's in is considered to be part of balancing the equation. It can be useful for calculating the entropy change, such as if you go from a liquid and solid to a gas.

But the actual balancing is just concerned with conservation of mass. Are the total number of molecules on the left side the same as the total on the right?

anonymous · Answer

Yes , but in my textbook , it is written as a attribute of a balanced reaction , i too think it is not significant , but who knows a question might be asked in exam , so i asked the question

kainui · Answer

Without it, the reaction itself is vague. I think an analogy to physics might help.

If I tell you to have a velocity of 30 km/hr if I don't tell you North, South, East, or West then it's kind of meaningless. How will a chemist actually do this reaction? Is it done in solution? In gas phase at high temperature perhaps?

anonymous · Answer

what i am saying is it should be included , with the balance part , ok anyways i am satisfied with the answer

kainui · Answer

Haha