BeDAK: Belajar Dengan Akronim.
Today, I want to share with all of you about one of the questions that may be asked in the SPM exam especially in Chemistry.
The questions is about the arrangement of the electrochemical series.
1. The formula for positive ions:
KNa Ca MgAl Zn FeSn Pb HCu Ag
How to read this formula: KeNa Ca MegAl Zn FeSn Pb HeCu Ag
2. The formula for negative ions:
F SO NO Cl BrI OH
How to read this formula: Fe SO NO Cli BrI OH
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