Question

Which statement describes a chemical property of iron?(1) Iron can be flattened into sheets.(2) Iron conducts electricity and heat.(3) Iron combines with oxygen to form rust.(4) Iron can be drawn into a wire.

Answer 1

Iron combines with oxygen to form rust.

Step-by-step explanation:

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Answer 2

The correct option is 3.
In the presence of oxygen, iron will react with water to form rust. This is a chemical reaction and it is one of the chemical properties of iron.
Chemical properties refers to those properties of a substance, which can be used to identify it chemically, that is by reason of chemical reactions. Examples of chemical properties are reactivity with water, heat of combustion, electromotive force, pH, etc.