Definitions of Terms
A chemical change is a process that leads to the alteration of a matter that was original and this leads to different compounds or elements at the end of this process. This process leads to the rearrangement of atoms in the compounds to make compounds that are different and new. An example of a chemical change is the reaction of magnesium with oxygen which leads to the production of a flame that is bright. The results are magnesium oxide which has properties that are very different from the magnesium metal itself. A chemical property is substance behavior when it goes through a chemical reaction or change.
Examples of substance chemical properties are flammability, toxity and oxidation. E.g. rust is caused by the oxidation of iron. A compound is a substance that is chemical and which has two or more elements of chemical that are different and these elements can be separated into substances that are simpler by reactions that are chemical. An element is a substance that is chemical and that consists of an atom of one type which is differentiated by its atomic number. Examples of elements are: iron, sodium, nitrogen, etc. A heterogeneous mixture is a mixture type which consists of components that be identified easily because the phases are two or more.
Examples include mixture of water and sand, oil and water, etc. On the other hand, homogenous mixture is a mixture type which consists of components that are uniform e.g. air is a mixture of substances that are gaseous oxygen, nitrogen, etc. A physical change happens when substances undergo a change that doesn’t alter their nature of chemical. Physical property is the property of a compound or an element that is observed without a reaction that is chemical of the substance. A substance is a material which has a composition of chemical that is definite. (Zumdahi, 2008).
References
Zumdahi, S.S. (2008): Introductory chemistry. USA: Cengage learning.
Is this your assignment or some part of it?
We can do it for you! Click to Order!
