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(chemistry) a chemical reaction
This chemical reaction is very dangerous.
chemical fiber
This shirt is made of chemical fiber.
chemical weapon
The use of chemical weapons is prohibited by international law.
biological chemistry
I am majoring in biochemistry at university.
organic chemistry
I love organic chemistry classes.
inorganic chemistry
I am majoring in inorganic chemistry at university.
chemical engineering
My major is chemical engineering.
analytical chemistry
Analytical chemistry is a science that reveals the composition and structure of substances.
chemical pollution
Chemical pollution has a serious impact on the health of the Earth.
a chemist
He is an excellent chemist who made many discoveries.
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