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Which kitchen job involves a chemical change?





A. Making ice cubes
B. Toasting bread
C. Slicing a carrot
D. Boiling water

This question is part of Chemistry Review
Asked by Hboudrea, Last updated: Jan 19, 2020

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2 Answers

M. Krasinski

M. Krasinski, Content Writer, Columbus

Answered Oct 23, 2018

Option B - Toasting bread is the correct answer
There is a chemical change when you toast a bread. Compare to ordinary bread, toasted bread has a change in color and taste.

Making ice cubes and boiling water are physical changes. They represent different forms of water. There is a physical change but the chemical composition remain unchanged.

Slicing a carrot is also a physical change. Chemical composition remain unchanged.

 

John Smith

John Smith

Answered May 29, 2017

Toasting bread

Chemical changes result in a new substance. Toast is different from bread in color, taste and texture - chemical change. Ice, water and steam are all forms of water - physical changes. Sliced carrots are still carrots, only smaller - physical change!
 

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