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O Describe Difference A Mixture A Compound Essay

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¶ … o Describe difference a mixture a compound o Suppose a pure substance. How a compound element? o What difference ionic a covalent bond? o Explain ionic compounds formed a metal left side periodic table reacts a nonmetal side. An overview of mixtures, compounds, and the processes of identifying them

Describe the difference between a mixture and a compound

The standard definition of a mixture is a substance in which two or more separate components are mixed together, but no chemical reaction occurs. Also, there is no fixed ratio of substances necessary for the mixture to take place. In the case of a compound, the atoms of the different, separate component substances are bonded together, thus creating an entirely new substance. A fixed ratio is usually required for the chemical transformation to take place and the compound to result. A mixture can be easily separated into two component parts, a compound cannot.

One example found in everyday life demonstrating the difference between a mixture and a compound is that of Raisin Bran and Crispix. With the mixture of Raisin Bran, the ratio of flakes to dried fruit is seldom consistent and it is easy to pick the raisins out...

Although Crispix is made from a variety of wheat, corn, and rice flours, it is impossible to unfuse them at the breakfast table, and the consistency of the flakes illustrates the fact that the cereal is composed of the same ratio of substances (Elements, compounds and mixtures, 2011, Purdue University).
Suppose that you have a pure substance. How can you tell whether it is a compound or an element?

All elements are pure substances that cannot be broken down into similar component parts. Compounds, through changes in energy, can be broken down into simpler substances or components, like the compound of water (H2O) can be broken down by breaking the bonds between the two hydrogen molecules and the single oxygen molecule.

What is the difference between an ionic and a covalent bond?

Ionic bonds contain positive and negative ions, have high melting and boiling points, exist in solid forms with a strong force of attraction between molecules and can be used to generate electricity in water if they are separate into charged particles. Covalent bonds exist as neutral molecules, have lower melting and boiling points, exist as gases with…

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References

Activity of metals. (2011). Purdue University.

Retrieved February 3, 2011 at http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch9/activity.php

The covalent bond (2011). Purdue University.

Retrieved February 3, 2011 at http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch8/index.php
Retrieved February 3, 2011 at http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch2/mixframe.html
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