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chemical reaction

chemical reaction

24 3.1
A change where substances turn into different substances
  • noun
  • /ˈkɛmɪkəl rɪˈækʃən/
  • Specialized
translation icon : reacción química
  • When you mix baking soda and vinegar, a chemical reaction produces carbon dioxide bubbles.
  • chemical reactions at the molecular
  • inorganic chemical reactions
  • complex chemical reactions

So our first prediction is that a chemical reaction should go faster when it's hotter.

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Examples

  • Eventually, the temperature becomes high enough that chemical reactions change the makeup of the gas.

    Academic text (2011)
  • My theory is that any strong emotion, like love or heartbreak, is nothing more than a series of chemical reactions in the brain.

  • Or you cook for this long and the reason why you brown the meat is to get this chemical reaction take place, right?

  • So yeah, it's, it's kind of a chemical reaction that happens in your eye.

  • Now this is just an exercise to show that you can in principle take any chemical reaction and use it to move things.

  • It's literally a chemical reaction.

  • Baking is a chemical reaction!

  • How do we interpret the present chemical reaction within the community and between the Church and society?

    Academic text (2003)
  • Light contacting these cells creates a series of complex chemical reactions.

    Academic text (2003)
  • Love isn't an opinion, it's a chemical reaction.

Synonyms

reaction
vschemical reaction
  • Specialized
123 3.0

A process where substances change and form new substances

is the same idea but emphasizes chemical transformation specifically
synthesis
vschemical reaction
  • Specialized
20 6.8

Making a chemical by combining simpler substances

covers all substance transformations, while this one specifically combines parts
redox
vschemical reaction
  • Specialized
7 7.8

A chemical reaction where one substance gives electrons and another receives them

is broader, applying to all transformations not only electron transfer pairs
chemical process
vschemical reaction
  • Specialized
4 3.5

A process that changes the tiny particles that make a substance

is the more specific term for substance change by chemistry
hydrolysis
vschemical reaction
  • Specialized
1 7.4

A process in which water breaks a substance into smaller parts that become new substances

covers substance change broadly, not only processes involving water
exothermic reaction
vschemical reaction
  • Specialized
1 4.2

A chemical change that gives off heat to the area around it

is the general transformation, not specifically about releasing heat
chemical change
vschemical reaction
  • Specialized
1 3.7

A process that turns one substance into a different one by changing its atoms or molecules

focuses on substances becoming different through chemical alteration
endothermic reaction
vschemical reaction
  • Specialized
1 5.9

A chemical change that takes in heat from the area around it

can include heat neutral or releasing processes, not only heat absorbing ones
displacement reaction
vschemical reaction
  • Specialized
1 6.0

A reaction where a more reactive element replaces a less reactive one in a compound

is the general transformation, not restricted to reactive element replacement
chemical action
vschemical reaction
  • Specialized
3.5

A process in which substances change into new substances, for example rusting or cooking

highlights the process leading substances to become different through chemistry
chemical decomposition reaction
vschemical reaction
  • Specialized
4.3

A chemical reaction where one compound breaks into two or more different substances

is the general case of transforming substances, not limited to breaking down
decomposition reaction
vschemical reaction
  • Specialized
6.3

A reaction where one compound breaks into two or more simpler substances

focuses broadly on substance transformation, not only single compound splitting
metathesis
vschemical reaction
  • Specialized
9.9

Two compounds swap parts to make two new compounds

describes general substance change, not only mutual element exchange reactions
neutralization reaction
vschemical reaction
  • Specialized
4.2

A reaction where an acid and a base make salt and water

is the wider class of substance change, not limited to acid base interactions
autocatalysis
vschemical reaction
  • Specialized
9.7

A chemical reaction where one product makes the reaction happen faster

describes transformation broadly, not requiring product driven acceleration
enzyme reaction
vschemical reaction
  • Specialized
3.8

A chemical change in a living thing that proteins make happen faster

is general chemical change across fields, not limited to biological catalysts
cycloaddition
vschemical reaction
  • Specialized
9.9

A reaction where two or more molecules join to make a ring

refers generally to substance transformations, not only ring forming steps

How Fast

explosive
  • Specialized
336 5.5
fast
1.0
chemical reaction
  • Specialized
24 3.1
slow
1.0
unreactive
  • Specialized
6.3

Surface Forms

Morphology

chemical + reaction

The noun phrase combines 'chemical' (relating to chemistry) with 'reaction' (a process or response), so its meaning — a process in which chemicals change — is directly compositional and derivable from the parts. This modifier+noun pattern is common cross-linguistically (e.g. reacción química, réaction chimique), so a B1 learner who knows both words will grasp the MWE.

Etymology

Chemical reaction gives a simple picture: a chemical is a substance and a reaction is what happens when things meet and change. Imagine two liquids mixing and making a new gas or a new colour—this image shows why it means 'a process where one substance changes into a different substance'.