pauline;] asks
15 years ago
method of preparation of oxygen.?
αиgєℓiиє says
15 years ago
gnwa na namin `to sa lab e..
pauline;] says
15 years ago
anu un.?
αиgєℓiиє says
15 years ago
yung prepare ng oxygen
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pauline;] says
15 years ago
oo
αиgєℓiиє says
15 years ago
ahmm. parang may pinakuluan pa kaming chemicals e