b0017 reason 03

reason 3.
You get BAD Chemistry test result because 
You do not know how to apply chemistry concept to answer questions.

This is also quite common.  The student understand how to process the information given by teacher explain using teacher's example.  When the student is asked to apply the same process using other example, the student can not process the information. 

Reason 3.1 
You get BAD Chemistry test result because 
You do not know how to apply chemistry concept to answer questions because
You get confused by different words, different pattern, different chemistry terms, different names for the same concept, same principle, same process. 

My solutions for you : 
solution 3.1 
Drop Chemistry subject

solution 3.2 
Use the my pattern consistently
I always label / number my pattern, diagram, table, graph, pictures, formulas and notes. Under the my ESFT (Extreme Spoon Feeding Technique), you'll hear these phrases quite often :
- To answer question 3, use table 4 in diagram 1, chapter 15. 
- Your mistake is because you are using formula 5, instead of formula 3.  Formula 5 is not relevant to this question because according to note 2, you can only use formula 5 at standard temperature and pressure.

to c105 03 http://blog.singaporestudent.com/2014/05/reason-03.html