Balancing Chemical Equations Quiz Balance the following chemical equations AND state which type of reaction. 1. Fe + O2  Fe3O4
2. Sr + O2  SrO
3. Sn + NaOH  Na2SnO2 + H2
4. K + Br2  KBr
5. C8H18 + O2  CO2 + H2O
6. Sb + I2  SbI3
7. COCl2 + H2O  HCl + CO2
8. CS2 + O2  CO2 + SO2
9. H2SO4 + NaCN  HCN + Na2SO4
10. KClO3  KCl + O2
11. H2 + F2  HF
12. BaCl2 + KIO3  Ba(IO3)2 + KCl
13. Mg + HCl  MgCl2 + H2
14. What does the law of conservation of matter state?
15. How does balancing equations demonstrate the law of conservation of matter?
16. How many grams of sodium would react with 20 grams of chlorine to produce 31.5 g of sodium chloride?

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