A process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
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Example sentencesExamples
They each have different chemical reactions because of their molecular structure.
A burning cigarette is a complex system in which many types of chemical reactions and physical processes occur in parallel.
An exothermic reaction is a chemical reaction which produces heat.
The fuel cell generates electricity as a by-product of a chemical reaction involving dilute methanol.
It was undergoing a chemical reaction and increasing the carbon dioxide.
But what happens to a chemical reaction if the reagents are not in an ideal ratio?
Atoms of these elements have six valence electrons and tend to gain or acquire electrons in chemical reactions.
They are catalysts that either begin chemical reactions or speed up chemical reactions already in progress.
The energy involved in a chemical reaction can be related to the differences in energy between the reactants and products.
The heat triggers a chemical reaction that turns the polymers into a hard, incredibly sturdy structure.
Enthalpy is more useful to chemists than energy when measuring the heat involved in chemical reactions.
The arrow in a chemical equation represents the process of the chemical reaction.
The state of matter may affect the way in which the molecule takes part in a chemical reaction.
Soaps are created by the chemical reaction of a fatty acid with an alkali metal hydroxide.
Temperature can determine which ions can form or remain stable enough to enter into chemical reactions.
His was the first group to study chemical reactions in this way under molecular beam conditions.
Most possess only the vaguest understanding of molecules, chemical reactions, and research methods.
Energy is not only involved in chemical reactions and technology, but also in our basic bodily functions.
This is what scientists call a physical process, because no chemical reactions take place.
Liquid ammonia is also utilized as a solvent in certain chemical reactions.
Definition of chemical reaction in US English:
chemical reaction
noun
A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
化学反应
Example sentencesExamples
It was undergoing a chemical reaction and increasing the carbon dioxide.
The arrow in a chemical equation represents the process of the chemical reaction.
The heat triggers a chemical reaction that turns the polymers into a hard, incredibly sturdy structure.
They are catalysts that either begin chemical reactions or speed up chemical reactions already in progress.
Energy is not only involved in chemical reactions and technology, but also in our basic bodily functions.
The state of matter may affect the way in which the molecule takes part in a chemical reaction.
Temperature can determine which ions can form or remain stable enough to enter into chemical reactions.
Liquid ammonia is also utilized as a solvent in certain chemical reactions.
But what happens to a chemical reaction if the reagents are not in an ideal ratio?
They each have different chemical reactions because of their molecular structure.
Atoms of these elements have six valence electrons and tend to gain or acquire electrons in chemical reactions.
Most possess only the vaguest understanding of molecules, chemical reactions, and research methods.
A burning cigarette is a complex system in which many types of chemical reactions and physical processes occur in parallel.
His was the first group to study chemical reactions in this way under molecular beam conditions.
The fuel cell generates electricity as a by-product of a chemical reaction involving dilute methanol.
An exothermic reaction is a chemical reaction which produces heat.
This is what scientists call a physical process, because no chemical reactions take place.
Soaps are created by the chemical reaction of a fatty acid with an alkali metal hydroxide.
The energy involved in a chemical reaction can be related to the differences in energy between the reactants and products.
Enthalpy is more useful to chemists than energy when measuring the heat involved in chemical reactions.