The carbon monoxide then reduces the iron ore to iron. This means the carbon monoxide is the ❌. The formula for this stage of the reaction is:
3CO + Fe2O3 --> 3CO2 + 2Fe
Carbon monoxide + ❌ --> Carbon dioxide + ❌

The iron ore contains the ❌.
The coke is almost ❌. This is for ❌ the iron oxide to iron metal.
The ❌ takes away impurities in the form of slag.

Uses of Iron and Aluminium: Iron and Aluminium have some properties in common.
1) They are both dense and ❌ (shiny)
2) They have ❌ - Iron melts at 1538 and aluminium melts at 660.
3) They both have ❌ - they're strong and hard to break.
4) Can also be hammered into different shapes. ❌.
5) They are both ❌ of electricity and ❌ too.

The uses of iron depend on its properties:

1) Wrought iron - is almost completely ❌. It's ❌ so it's used to make ornamental gates and railings.

You can mix iron with other elements to make ❌. E.g.
1) Cast iron: Mixture of iron, carbon and silicon. Hard, brittle and is used for ❌.
2) Steel: Alloy made or iron, carbon and usually some other metals. Harder than pure iron but can still be hammered into sheets and welded together. These properties mean that steel is great for ❌ (for construction.)

Main problem is iron corrodes easily. E.g. It ❌
❌ is an alloy made of iron and chromium that doesn't rust. Used for knives and forks and cooking pans.

Uses of Aluminium: Unlike iron doesn't ❌ easily.
Reacts very quickly with the ❌ in the air to form aluminium oxide.
Because Aluminium doesn't corrode useful for products that come into contact with water. E.g. ❌
Aluminium is much ❌, which makes it lighter so used for bicycle frames and ❌