The yeast plant causes a number of chemical changes to take place, as conversion of starch to a soluble form and alcoholic fermentation.
If the organic matter contain a large amount of nitrogenous material, particularly of proteid origin, a series of chemical changes induced by bacterial action takes place, resulting in the production of nitrites.
To what extent is the energy of fuels utilized for producing mechanical and chemical changes in foods during cooking?
When a seed is placed in the soil under favourable circumstances, it becomes the seat of an important and remarkable series of chemical changes, which result in the production of the young plant.
The inorganic constituents of the soil are obtained as the result of a succession of chemical changes going on in the rocks which protrude through the surface of the earth.
Atomic Principles, as above mentioned, are best illustrated by a reference to Chemical changes, and we shall now examine the same.
Chemical Changes, as distinguished from Physical Changes, do not involve or deal with Molecules, the action being solely upon the Atoms of which the Molecules are composed.
Spontaneous combustion is that which occurs in various bodies when they become highly heated by chemical changes.
Here are chemical changeswhich develope heat, and produce spontaneous combustion.
Because the hay, having become damp, decays, and passes on to a state of fermentation, in which chemical changes occur, during which heat is evolved.
What has been said above clearly limits the province of chemical changes, because from substances of a given kind there can be obtained only such as contain the same elements.
Thus the alchemists knew of two forms of chemical changes: the oxidation of metals and the reduction of the oxides so formed into metals.
There are few natural constants which undergo so marked a change with temperature as those of the velocities of chemical changes.
This view, as applied to chemical changes, was first advanced by A.
The term radical is given to a group of atoms which persist in chemical changes, behaving as if the group were an element; the commonest is the ammonium group, NH4, which forms salts similar to the salts of sodium and potassium.
There are any number of chemical changes or reactions in a living body, but are the atoms and molecules that are involved in such changes radically changed?
Chemical changes equivalent to the combustion of fuel and the corresponding amount of available energy released have not yet been achieved outside of the living body without great loss.
Chemical changes, undoubtedly, but what brings about the chemical changes?
In this manner the particles of mineral matter become pulverized, and in a measure affected by chemical changes in the bodies of the creatures, and are thus better fitted to afford plant food.
The rusting of iron is a process of chemical changes in which the original substance was wholly changed by chemically uniting with the oxygen and the moisture of the atmosphere, which is really a process of combustion.
Sidenote: Examples of chemical changes] If a piece of iron be exposed to dampness it will soon become covered with a reddish powder called "rust.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "chemical changes" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
