Nobody downloaded yet

Elements, Mixtures and Compounds - Essay Example

Comments (0) Cite this document
Elements, Mixtures and Compounds Your Name University Schools Number and Name of Course (e.g., May 13, 2012) Elements, Mixtures and Compounds 1) Describe in detail the difference between a mixture and a compound.  A mixture comprises of two or more substances that are not held together by chemical bonds…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER92.7% of users find it useful
Elements, Mixtures and Compounds
Read TextPreview

Extract of sample
"Elements, Mixtures and Compounds"

Download file to see previous pages For example, a mixture of iron and sulfur can be taken in any proportion while a compound such as iron (II) sulfide always has a ratio of 7 : 4 by mass of iron and sulfur (Leong & Aik, 2009). When a mixture is prepared by mixing two or more substances, there is no chemical exchange involved and there is absence of heat or light production. When a compound is prepared, it is usually accompanied with a chemical change in which some heat, light or both are liberated. For example, when a mixture is prepared by mixing iron filings and sulfur, no heat is liberated. However, when hot iron filings and sulfur are taken together in a test tube, a chemical reaction occurs resulting in the formation of iron sulfide (Fe + S ?FeS). The test tube glows red because of heat produced during the reaction (Leong & Aik, 2009). The properties of a mixture are characteristic of the individual substances mixed. On the contrary, the properties of a compound are very different from those of the original elements. For example, in a mixture of iron filings and sulfur, properties such as magnetism, color, texture of the individual substances are retained. Iron sulfide, a compound, has very different properties from those of iron and sulfur. It lacks magnetic activity and also has different physical and chemical properties (Leong & Aik, 2009). ...
2) Supposed that you have a pure substance, how can you tell whether it is a compound or an element?  An element cannot be further broken down chemically, while a compound can be broken down into individual components or elements using chemical reactions specific for that compound. For example, heating mercuric oxide, which is a compound, over a Bunsen flame, will result in the decomposition and separation of mercuric oxide into mercury and oxygen. However, mercury and oxygen, which are elements, cannot be further broken down using any chemical means (Leong & Aik, 2009). Therefore, in order to tell whether a given pure compound is an element or a compound, it will be subjected to various separation procedures to determine if it can be broken down further. Its melting and boiling points and other physical and chemical properties will also be noted and compared with those of preexisting elements and compounds for ease of identification. 3) What is the difference between an ionic and a covalent bond? Chemical bonds such as ionic and covalent bonds determine the properties of a compound. The main differences between the two kinds of bonds are discussed as follows: Ionic bond is formed when electrons are transferred from one atom to another. The transfer of electrons results in the formation of a positive and a negative ion that are held together by strong electrostatic attraction. For example, salt (NaCl) is formed when an electron from sodium (Na) is transferred to chlorine (Cl) to form ions (Na+ and Cl- ) that are held together to form salt (NaCl). Covalent bond is formed when an electron pair from the outer shell is shared between two atoms. For instance, Hydrochloric acid ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Elements, Mixtures and Compounds Essay Example | Topics and Well Written Essays - 1000 words”, n.d.)
Retrieved from
(Elements, Mixtures and Compounds Essay Example | Topics and Well Written Essays - 1000 Words)
“Elements, Mixtures and Compounds Essay Example | Topics and Well Written Essays - 1000 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Comparing elements
...?Infidelity at its Best Comprehensively, adultery is a married person’s act of sexual infidelities. Like water, adultery is a very sensitive matter that takes many forms. It can be committed even through thoughts and visual perceptions, expression through lewd languages and the most common of its forms is having extramarital affairs. Adultery is best exemplified as either of these two contrasting forces- struggles for freedom and an appreciation of freedom. A woman married to a philandering husband known as Phair, Katherine easily resolved to relegate herself to adultery not according to the intention of getting even with his husband’s unfaithfulness but to free herself from the revolting realities and personal fears she... at its Best...
2 Pages(500 words)Essay
Separation of Mixtures of Solids
...?SEPARATION OF MIXTURES PURPOSE This experiment was performed to become familiar with the separation of mixtures containing solid components. DATA Table 1. Recorded Weights During the Experiment Before Separation A. Weight of weighing dish 0.6 g B. Weight of mixture + dish 4.7 g C. Net weight of mixture (B - A) 4.1 g During Separation D. Iron fillings 1.2 g E. dry sand 0.4 g F. Benzoic acid 0.2 g G. Salt 0.7 g H. Total weight of separated solids (D+E+F+G) 2.5 g Comparing before and after separation Percent loss during procedure ([4.1-2.5/4.1]*100) 39% OBSERVATIONS Table 1 summarizes the weights recorded during the experiment. As can be seen, the total weight of the...
3 Pages(750 words)Lab Report
Volatile Organic Compounds in School
...? Volatile Organic Compounds in School Table of Contents I. Introduction 3 II. Volatile Organic Compounds - Prevalence 4 III. Volatile Organic Compounds in Schools 6 Works Cited 9 I. Introduction This paper discusses volatile organic compounds (VOCs) in schools. Academic literature and literature from reputable agencies and institutions extensively discuss volatile organic compounds because of their toxic qualities, and because they are prevalent in the environment, as byproducts of human activity. First, by organic compounds is meant compounds that contain carbon, an element that is present in all forms of life. VOCs, as the name suggests are carbon compounds that lend themselves to becoming gases or vapors with relative ease... . As such...
5 Pages(1250 words)Essay
Never Elements
...?Never Elements One can see that an imaginary world with full of superhuman characters can stimulate the imagination of the readers and they will be forced to contemplate on the scope of a different world. But one can see that aforementioned world is just imaginary because life cannot survive in harsh conditions. Still, readers consider that a different life is possible because technological innovation force them to think so. Within this context, the fiction named as Neverwhere by Neil Gaiman is noteworthy because the author leads the readers to the realm of underground dwellers. Besides, this literary work can be considered as a temporary escape from the real world to an imaginary world under the earth. Thesis statement:...
4 Pages(1000 words)Essay
Litereary elements
...Symbolism as an Important Literary Element An important literary element that is seen in almost every genre of imaginative literature is symbolism. “Imaginative literature is more likely than other types of writing to include words chosen not only because they communicate the writer’s ideas, but also because they are memorable. Using vivid imagery and evocative comparisons, writers of imaginative literature often stretch language to its limits. By relying on the multiple connotations of words and images, a work of imaginative literature encourages readers to see the possibilities of language and to move beyond the factual details of an event” (Kirszner & Mandell, 2004: 1). Symbolism enables the...
5 Pages(1250 words)Essay
Supernormal Elements
...confidentiality and trust so as to earn credibility. My article had discussed the existence of supernormal elements in the form of ghosts or spirits as seen by my brother when he was young. The need to make it fascinating so that reader connects with the events was important factor in using words and expressions that deliberately evoked a sense of déjà vu and bizarre happening. Hence, rhetorical argumentation becomes critical to delve deeper into the meanings of words and phrases to demystify the element of surreal reality. The need to expose the real picture through rhetorical analysis would help to deconstruct the motive of the writer. In this case, the ethos and pathos as used by myself must be...
1 Pages(250 words)Essay
...needs. The shampoo is used to groom mainly dogs and horses and they are rendered fatal if consumed. This is due to the high iodine content which can cause iodine poisoning when consumed. Another iodine product that is commonly used is Kent Marine Concentrated Iodine used in aquariums. Natural sources of Iodine Iodine occurs naturally in plants and in some animals and animal products. Iodine easily attaches to organic compounds and this explains why the main sources include animals and plants. Many plants contain iodine as it occurs naturally on earth and when plants are growing, they absorb it from the soil. Iodine is more concentrated in water bodies as compared to the dry earth (ACP, 1996). For this reason, seaweeds...
3 Pages(750 words)Assignment
Performance Elements
...Performance Elements Performance elements Drama is a particular type of fiction work represented in performance that involves performance of actors on a stage before an audience, which collaborates various modes of production and a collective reception by the audience present. The dramatic work is, therefore, directly influenced by the collaborative production and collective reception. When comparing some of the plays written, in this case Reeds The C Above the C Above High C and Wildes The Importance of Being Earnest, various aspects of plays are considered so as to enable the reader to be able to picture the performance through the text reading. In Wilde’s The Importance of Being Earnest, it contains...
1 Pages(250 words)Assignment
Volatile organic Compounds
...Volatile Organic Compounds al Affiliation Dear Client In addressing the concerns you raised about your drinking water, I carriedout a laboratory analysis of the water. I used the gas chromatography electron capture detector method so that I could determine the levels of chlorinated compounds in the water. From the test carried out, it was determined that the water contained both chloroform and TCE. The levels were determined to be 0.25ppm making the water to be potentially harmful to the health to the person who drinks or consumes it. Chloroform gets into the drinking water from the chlorination process of the naturally occurring organic compounds and materials in raw water (Scott &...
1 Pages(250 words)Lab Report
Rhetorical Elements
...Rhetorical Elements in the Article The of the Rhetorical Elements in the Article The article under analysis, “Nicki Minaj, MileyCyrus, and the VMAs: A Tone-Policing Palooza,” has a great material representing key rhetorical elements. Definitely, the audience of the article is the people in the know of Nicki Minaj and Miley Cyrus’s opposition trigged by Minaj’s view that her work has not been nominated for Video of the Year because of her skin color and curves, while Cyrus’s video has won because of her white skin and skinny body (Kornhaber, 2015). The purpose of the article is to draw people’s attention to the heated arguments between American stars originating from their biased...
2 Pages(500 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Elements, Mixtures and Compounds for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us