Metals (blast furnace)

Question 1

redox reactions in blast furnace?

Answer 1

1. C + O2 —-> CO2
2. C + CO2 —-> 2CO
3. Fe2O3 (s) + 3CO (g) —-> 2Fe (l) + 3CO2

Question 2

Decomposition rxn?

Answer 2

4. CaCO3 (s) —-> CaO (s) + CO2

Question 3

neutralisation rxn?

Answer 3

5. CaO (s) + SiO2 (s) —-> CaSiO3 (l)

basic oxide acidic

Question 4

what is thrown into blast furnace

Answer 4

• —> haematite (Fe2O3)
• —> Coke (C)
• —> limestone (CaCO3)

Question 5

products of blast furnace?

Answer 5

• —> slag (CaSiO2)

- —> molten iron (Fe)