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Al 3+.=ion aluminium
Na+ =ion Natrium
Cl- =ion klorida
F- =ion florin
Mg2+= ion magnesium
Molekul:
Gas Hidrogen (H2)
Gas Oksigen (O2)
Gas Nitrogen (N2)
Air (H2O)
Gula (C2H22O11)
Unsur:
Tembaga (Cu)
Besi (Fe)
Belerang (S)
Timbal (Pb)
Seng (Zn)