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We call chemical reaction to the process that leads to the transformation of one substance or set of substances into another different one. One very simple and common example of a chemical reaction is the combination of simple oxygen gas with simple hydrogen gas to conform the complex substance called water.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoSome examples of early chemical technology
(from Heinemann Chemistry 1, 4th Edition, page 4):
- Producing iron form iron ore (ca. 1000 BCE)
- Using plants for their medicinal properties, as well as for poisons on arrowheads
- Primitive farmers applied manure to their crpos, even though they didn't know of fertilisers
- For thouseands of years, bakes and winemakes were unaware of that chemical reactions in yeast cells convert sugar to carbon dioxide and ethanol during fermentation
Some other examples are:
- The making of alloys, such as brass and bronze, to enhance the properties of metals
- The extraction of chemicals from plants and animals for use as fabric dyes
- The chemical treatment of animal hides
- The development of different methods of cooking foods
- The development of perfumes
- The extraction and use of oils for skin treatment and in lamps.
Wiki User
∙ 8y agoSince you didn't specify any hypothetical examples, here are a couple. Evaporation, the process of a substance changing from liquid to gaseous, is a chemical process. So is brewing a cup of tea, when the oils from the tea leaves are released by immersion into heated water. so is solidification, such as when water turns into ice.
Wiki User
∙ 14y agoMicrochips are an example of an advanced technology that uses a chemical reaction. Microchips are formed by the chemical reaction between photoresist and ultraviolet light.
Wiki User
∙ 14y agoburning something, rusty nails, cooking, ...
Wiki User
∙ 7y agonails rusting, or glass melting or sugar dissolving or alchohol vaporizing
Wiki User
∙ 11y agoCH3 :- Methane
C2H5 :- Ethane (used in gas cylinder's)
CH4N2O :- Urea (used as fertlizers in crops)
NaCl :- Sodium Chloride OR Comman salt (used for cooking in home)...
Wiki User
∙ 10y agoExamples: oxydation, reduction, combustion, synthesis, digestion, alkylation etc.
Wiki User
∙ 8y agoYou did not list any of the following, and we do not guess very well.
Wiki User
∙ 11y ago2H2 + O2 --> 2H2O
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Is mechanical weathering a chemical process?
No. It is a physical process. Chemical weathering is a chemical process.
Are exploding fireworks an example of a physical or chemical change?
Explosions are a form of either combustion or decomposition (or both) reactions, and they are chemical changes.
Is digesting a candy bar a physical process or chemical process?
chemical
Is coal being burned to boil water an example of chemical energy changing to thermal?
yes because burning is a chemical process that is used to boil water with heat
Is transferring graphite from pencil to paper when writing a chemical or physical change?
physical change. You know that it is a physical change because it can be reversed. An example of a chemical change would be cooking an egg. Because you cannot reverse the process.
What is example of Energy conservation?
Any physical or chemical process will serve as an example, since energy is always conserved.Any physical or chemical process will serve as an example, since energy is always conserved.Any physical or chemical process will serve as an example, since energy is always conserved.Any physical or chemical process will serve as an example, since energy is always conserved.
Is making glue an example of a physical or chemical property?
Making glue is a chemical process.
What is an example of chemical energy to electric energy?
The example of conversion of chemical energy to electrical energy is the process occurring in the batteries.
What is an isoentropic process?
An isoentropic process is a chemical or thermodynamic process in which entropy does not change. An example a reversible adiabatic process is isoentropic.
What is an example of physical rather that a chemical change?
Melting is a physical process.
What is dissolution an example of?
Dissolution is an example of a chemical reaction. This is the process through which a solute and solvent mix to form a solution.
What is an example of a change from electrical energy to chemical energy?
The process of charging a storage battery.
A metallic compound reacting to form the metal element is an example of which chemical process?
Reduction
How can explain liquors as an example of chemistry?
Liquors must be distilled, and distillery is a chemical process.
Is evaporation a chemical or a physical?
Evaporation is an example of a physical change, as the chemical composition of the substance is not altered in any way.
Is mechanical weathering a chemical process?
No. It is a physical process. Chemical weathering is a chemical process.
Acid rain breaks down rocks by reacting with their minerals. This process is an example of?
chemical weathering
