Chemical change

chemicalChemical changes in matterchemicallyChemically alteringmaterial
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.wikipedia
72 Related Articles

Chemical reaction

reactionchemical reactionsreactions
These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.

Chemical synthesis

syntheticsynthesissynthesized
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

Chemical decomposition

degradationdecompositiondecomposes
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

Heat

heat energythermalhot
Some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions.

Exothermic reaction

exothermicexothermicallyexothermic process
Some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions.

Chemistry

chemistchemicalChemical Sciences
Understanding chemical changes is a major part of the science of chemistry.

Atom

atomsatomic structureatomic
When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.

Gibbs free energy

free energyGibbs energyfree-energy
When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.

Sodium

NaNa + sodium ion
An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.

Water

H 2 Oliquid wateraqueous
An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen. Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Sodium hydroxide

caustic sodaNaOHsodium
An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.

Hydrogen

HH 2 hydrogen gas
An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.

Pharmacy

chemistpharmaciesdrugstore
Chemists categorize chemical changes into three main classes: inorganic chemical changes, organic chemical changes and biochemical changes.

Inorganic chemistry

inorganicinorganic chemistinorganic compounds
Inorganic chemistry describes the reactions of elements and compounds that, in general, do not involve carbon.

Laboratory

laboratorieslablaboratory equipment
The changes typically take place in laboratories, or on a larger scale in heavy industries.

Neutralization (chemistry)

neutralizationneutralizeneutralized
Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Acid

acidicacidityacids
Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Base (chemistry)

basebasicbases
Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Salt (chemistry)

saltsaltspotassium salt
Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Redox

oxidationreductionoxidized
Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Combustion

burningignitionincomplete combustion
Typical types of change include neutralization (mixing an acid with a base, resulting in water and salt), oxidization including combustion, redox reactions etc.

Organic chemistry

organicorganic chemistorganic chemical
Organic chemistry is concerned with the chemistry of carbon and the elements and compound with which it reacts.

Carbon

Ccarbonaceouscarbon atom
Organic chemistry is concerned with the chemistry of carbon and the elements and compound with which it reacts.

Mineral oil

lube oiloilpetroleum oil
These compounds include mineral oil and all of its products and much of the output of industries manufacturing pharmaceuticals, paints, detergents, cosmetics, fuels etc. Typical examples of organic chemical changes include cracking heavy hydrocarbons at an oil refinery to create more gasoline from crude oil, as gasoline is in higher demand than the heavier hydrocarbons, such as residual fuel oils.

Medication

pharmaceuticalpharmaceuticalsdrug
These compounds include mineral oil and all of its products and much of the output of industries manufacturing pharmaceuticals, paints, detergents, cosmetics, fuels etc. Typical examples of organic chemical changes include cracking heavy hydrocarbons at an oil refinery to create more gasoline from crude oil, as gasoline is in higher demand than the heavier hydrocarbons, such as residual fuel oils.