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(chemistry) chemical element
Oxygen, which is one of the chemical elements, is necessary for us to breathe.
(chemistry) chemical equilibrium
Understanding chemical equilibrium is very important in understanding chemical reactions.
undergo a chemical change
This substance undergoes a chemical change when heat is applied.
chemical reaction, chemical change
In this experiment, you can observe a chemical reaction.
(organic chemistry) an organic compound
The study of organic compounds is an important field in chemistry.
carbon monoxide
Carbon monoxide is a colorless, odorless gas, and it is dangerous to inhale.
(inorganic chemistry) carbon dioxide
Carbon dioxide is one of the main causes of global warming.
(biochemistry) unsaturated fatty acid
Unsaturated fatty acids are said to be good for health.
(chemistry) pH
The pH of this liquid is 7.
(chemistry) arsine
Arsine is a colorless, odorless, and highly toxic gas.
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