3. HgO Hg + O2
![Chemistry](/tpl/images/cats/himiya.png)
What type of chemical reaction are these 1. H2 + O2 H2O
2. S8 + O2 SO3
3. HgO Hg + O2
4. Zn + HCl ZnCl2 + H2
5. Na + H2O NaOH + H2
6. C10H16 + Cl2 C + HCl
7. Si2H3 + O2 SiO2 + H2O
8. Fe + O2 Fe2O3
9. C7H6O2 + O2 CO2 + H2O
10. FeS2 + O2 Fe2O3 + SO2
11. Fe2O3 + H2 Fe + H2O
12. K + Br2 KBr
13. C2H2 + O2 CO2 + H2O
14. H2O2 H2O + O2
15. C7H16 + O2 CO2 + H2O
16. SiO2 + HF SiF4 + H2O
17. KClO3 KCl + O2
18. KClO3 KClO4 + KCl
19. P4O10 + H2O H3PO4
20. Sb + O2 Sb4O6
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Answers: 2
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Do you know the correct answer?
What type of chemical reaction are these 1. H2 + O2 H2O
2. S8 + O2 SO3
3. HgO Hg + O2
3. HgO Hg + O2
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