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science count atoms
counting atoms
Question | Answer |
---|---|
K2CO3 | K-2 C-1 O-3 |
Na2CrO4 | Na-2 Cr-1 O-4 |
NH4C2H3O2 | N-1 H-7 C-2 O-2 |
Pb(NO3)2 | Pb-1 N-2 O-6 |
2 (NH4)2Cr2O7 | N-4 H-16 Cr-4 O-14 |
4 Al2(CO3)3 | Al-8 C-12 O-36 |
3 CaCl2 | Ca-3 Cl-6 |