Which process is an example of a chemical change?

Chemistry

2 answers:

Ivanshal [37]2 years ago

8 0

A metal rail rusting in damp weather.

jonny [76]2 years ago

3 0

Answer:

The correct answer is :a metal railing rusting in damp weather is an example of a chemical change.

Explanation:

Physical property is defined as the property of a substance which becomes evident during physical changes. Example: Melting point

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Example: Melting of ice

Chemical property is defined as the property of a substance which becomes evident during chemical changes. Example: Reactivity with other substances

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: Corrosion of iron called as rusting.

Rust is ferric oxide $Fe_2O_3$ .

$4Fe+3O_2\righatarrow 2Fe_2O_3$

A metal railing rusting in damp weather is an example of chemical change because composition of an iron rail is changing.

$4Fe+3O_2\rightarrow 2Fe_2O_3$

Where as other examples given are the examples of physical change.

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Answer:

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Explanation:

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