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very confused on this? which chemical equation is balanced correctly?
1 Answer
- Roger the MoleLv 72 years ago
The first answer is wrong because there are two As atoms on the left and only one on the right. The O, H, and Na atoms are unbalanced too.
It should be: 2 As + 6 NaOH → 2 Na3AsO3 + 3 H2
The third answer is wrong because there are four Cl atoms on the left and only one on the right. The H atoms are unbalanced too.
It should be: TiCl4 + 2 H2O → TiO2 + 4 HCl
The fourth answer is wrong because there are four Fe atoms on the left and only two on the right. The O atoms are unbalanced too.
It should be: 4 FeS + 7 O2 → 2 Fe2O3 + 4 SO2
The second answer is correct.
