NOUN
- (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
How To Use chemical change In A Sentence
- Optical radiation may cause chemical changes in living or non-living materials: this property is called actinism and radiation capable of causing such changes is referred to as actinic radiation.
- A chemical change takes place in any substance when it burns.
- Objective To observe the histochemical changes of the enzyme activities of adrenal cortex after hemisection of spinal cord in rats.
- All hair contains a mixture in varying concentration of both black-brown eumelanin and red-yellow phaeomelanin pigments, which are susceptible to differential chemical change under certain extreme burial conditions (for example wet reducing conditions, or dry oxidising conditions). Interactive Dig Hierakonpolis - Archaeological Hair
- The usual reason given for the use of a chronometric system is that we don't have enough biological activity or geochemical change to find useful markers.
- The radiation causes chemical changes in the brain that resemble symptoms of Alzheimer's. The Sun
- A chemical change takes place in any substance when it burns.
- When two or more elements combine and form a compound, a chemical change takes place.
- The purpose of all this is to bring about chemical changes, of which the most important is the secretion by the growing embryo of an enzyme, amylase, which converts starch in the grain to maltose, a sugar.
- A vast number of interlocking hormonal and biochemical changes result from smoking. The Beat Fatigue Workbook - how to identify the causes
