Mixture, Compounds, Covalent and Ionic Bonds Describe Essay

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Mixture, Compounds, Covalent and Ionic Bonds

Describe difference a mixture a compound Suppose a pure substance. How a compound element? What difference ionic a covalent bond? Explain ionic compounds formed a metal left side periodic table reacts a nonmetal side.

Mixtures are composition of two or more substances which are not chemically combined and do not exist in fixed proportions to each other. For instance when you take two components, an iron and Sulphur powder, the two when mixed together can be separated by physical means since they are not chemically combined i.e. with the use, of a magnet. Mixtures have the following characteristics which differentiates it from compounds. They include; mixtures can be disintegrated by the use of a physical method, the substance which form the mixture normally retain their properties, mixtures do not have a sharp melting point, they also have no fixed composition, and lastly a mixture is an impure substance Zumdahl, 2007()

A compound can be termed as any number of liquids, solids, or gases as long as they are chemically bonded. A compound has the following characteristics which differ from those of a mixture. They include; compounds are pure substances, the composition in it is fixed throughout the mass, it cannot be separated through any physical method therefore; they are only separated by chemical means by destroying the compound first, it has a fixed melting point, and lastly, the elements in the mixture are known to lose their property Zumdahl & DeCoste, 2010()

These compounds often combine to form chemical compounds in two categories. These include the ionic and covalent compounds. Ionic compounds are formed when nonmetal reacts with the metals. This compound comes about when the positive and negative ions either subtracts or add electrons from neutral molecules and atoms Pauling, 1988.

An example being a reaction between sodium and chloride to form sodium chloride as the end reacted compound.

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Ionic compounds have the following characteristics, which include; they have a high melting and boiling point, they have a strong attraction forces between them, they separate into charged particles in water to release a solution that is capable of conducting electricity for instance, dissolving of solid sodium chloride (NaCl) into water will form aqueous sodium and chlorine ions both having opposite charges, and lastly, they are solid like such as table salt (NaCl(s)).

On the other hand, covalent compounds are formed when the two nonmetals or more combines. The end product consists of neutral molecules. An example is a composition between hydrogen gas and oxygen gas to form an end product known as water.

Covalent compounds have the following characteristics, they include; covalent compounds exists as neutral molecules, they can also exist in the state of liquids, solids or gases, they usually have a low boiling and melting point, they have weak attraction forces between their molecules hence the low boiling and melting points, and lastly, they retain they molecules in water, therefore, lacking the ability to conduct electricity.

A pure substance is any substance that has a single type of material in it. You can tell whether a substance is an element of a compound by finding out whether it is homogenous or heterogeneous just by the look of it. In addition, you can tell whether a pure substance is an element or a compound by trying to break….....

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