Compare the type of change that occurs when a substance melts and when a substance is set on fire. use complete sentences to justify the type of change that occurs.

When iron rusts there is a chemical change known as oxygenation. When a substance freezes it's called a physical change because it's only changing the state of matter.

Hope this helps :-)

FYI remember to always write your responses for school on your own words so you dont possibly get plagiarism or in trouble for proof of cheating ^_^

Explanation:

A physical change is defined as the change that causes no change in chemical composition of a substance. And, during a physical change temperature of a substance remains the same.

For example, melting of ice is a physical change and during this change latent heat of fusion, that is, heat required to convert 1 g of a solid substance into liquid state will keep the temperature constant unless and until all the solid changes into liquid.

On the other hand, a change in which a new product is formed due to change in chemical composition of the reacting species is known as a chemical change. During a chemical change, there will occur change in temperature.

So, when a substance is set on fire then there will occur change in temperature of the substance.

Hence, it means it is a chemical change.

When iron rusts there is a chemical change known as oxygenation. When a substance freezes it's called a physical change because it's only changing the state of matter.

Hope this helps :-)

FYI remember to always write your responses for school on your own words so you dont possibly get plagiarism or in trouble for proof of cheating ^_^

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