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C + ---> C
P + --->
Pb + --->
Na + ---> NaCl
Cu + ---> Cu
Fe + ---> Fe
S + ---> S
P + ---> P
U + ---> U
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C + O2 --> CO2
4P + 3O2 --> 2P2O3
3Pb + 2O2 --> Pb3O4
2Na + Cl2 --> 2NaCl
Cu + Cl2 --> CuCl2
2Fe + 3Cl2 --> 2FeCl3
S + 2Cl2 ---> SCl4
2P + 5Cl2 ---> 2PCl5
U + 3F2 --> UF6
C+O2-->CO2
4P+3O2-->2P2O3
3Pb+2O2-->Pb3O4
2Na+Cl2-->2NaCl
Cu+Cl2-->CuCl2
2Fe+3Cl2-->2FeCl3
S+2Cl2-->SCl4
P+3Cl2-->PCl5
U+4F2-->UF6