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secondary 4 | Chemistry
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Jonathan
Jonathan

secondary 4 chevron_right Chemistry chevron_right Singapore

Why is the answer B?

Date Posted: 2 years ago
Views: 225
MisterXYZ
MisterXYZ
2 years ago
Recall back to the chapter on element, compound and mixture. Remember elements are the simplest form and cannot be broken down further. Thus the description for P and Q does not fix the description of an element.
PhysChemTutor
PhysChemTutor
2 years ago
If Q is a compound, how can it only form water and nothing else when burned in air. Hope can help...

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PhysChemTutor
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