Writing reactions

When a reaction occurs, we can record on paper what has happened, but we do so in very specific ways. For example, whenbarium nitrate reacts with sodium sulfate, the reaction that occurs is written this way:

 

 

 

 

 

 

 

 

 

Here is the same reaction, with explanations for all of the numbers that you may or may not recognize:

 

 

 

 

 

 

 

 

 

When reactions are written in this manner, there are a few very important rules that must be followed:

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