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laptop Battery Reactions and Chemistry

Friday, July 29th, 2011
Chemistry

When you shop with Udtek.com, you’ll choose from brand name computers—the industry’s top names—at prices simply not possible anywhere else. But that’s just the beginning. We also carry a vast inventory of components: laptop batteries, ac adapters, hard drives, lcd chargers, cases and more. You’ll find emerging technologies as well, because at the end of the day, we love what we sell.

As we know in any battery, an electrochemical reaction occurs like the ones described on the previous page. This reaction moves electrons from one pole to the other. The actual metals and electrolytes used control the voltage of the battery — each different reaction has a characteristic voltage. For example, here’s what happens in one cell of a car’s lead-acid battery:

The cell has one plate made of lead and another plate made of lead dioxide, with a strong sulfuric acid electrolyte in which the plates are immersed. Lead combines (more…)

29.07.2011 Chemistry No Comments

Interstellar Chemistry And Astrobiology

Monday, July 25th, 2011
Chemistry

In the night sky, the expanses of space between the stars of the Milky Way appear to be empty. In fact this space is occupied by a very thin gas that is mostly hydrogen and that has mere traces (less than 0.1% by number of atoms) of other elements such as oxygen, carbon, and nitrogen. The gas is also dusty; it contains grains of dust (particulate matter) that, like an interstellar fog, impede one’s view of the stars. This gas is not evenly spread in space, but is clumpy. Although on average there is approximately one hydrogen atom for every cubic centimeter of interstellar space, a clump may be one thousand or more times as dense as a comparable volume of average density. Since about 1970 astronomers have been finding that these denser regions contain a great variety of molecules; about 120 different molecular species have been identified in the interstellar medium. The study of these molecules in the Milky Way and in other galaxies is called (more…)

25.07.2011 Chemistry No Comments

EXTENDED ESSAY WRITING ON APPLIED CHEMISTRY

Tuesday, July 19th, 2011
Chemistry

Applied chemistry is the relative field that involves the application of certain theories and principles of chemistry that are subject to practical purposes. Writing an extended essay in Applied Chemistry is relatively difficult and time consuming assignment, but, it provides a gate way to investigate things deeply.
SELECTION OF TOPIC:
An aspect of utmost importance is topic selection. In applied chemistry extended essay is subject to characterize, compose and transform the substances incorporating the chemical theories and principles and studies the matter related changes that undergoes. A topic must deliver an approach involving chemistry indirectly.
An extended essay on applied chemistry depends on the chemical content. a good extended essay focuses on a single research question, emphasizing on seeking a better solution with in the limit of word count.
The topic should be treated well, no matter at which category it lies in, sufficient information (more…)

19.07.2011 Chemistry No Comments

Finding Your True Love At Eharmony And Chemistry Dating

Sunday, July 17th, 2011
Chemistry

Both eHarmony and Chemistry are dating sites that are designed to match people up with those who will be a good match for them based on a series of questions. While Chemistry.com will take anyone who joins the site, eHarmony has been known to reject people who do not meet their criteria. Chemistry is a relatively new site that allows you a free trial as does eHarmony. While Chemistry allows you to pay monthly, eHarmony encourages a 6 month membership that you have to pay up front.

 

Do you Vibe Well?

 

There are many internet dating sites available for singles as well as those who want to date and who may be married. No matter what your preference, there is bound to be a dating site that caters to you. Those who are seriously looking for a committed relationship prefer to use dating sites like eHarmony and Chemistry because they require a lot more work on behalf of the party who enrolls in the site.

 

(more…)

17.07.2011 Chemistry No Comments

What is the Role of Chemistry in Relationships?

Friday, July 15th, 2011
Chemistry

Chemistry in relationships and its role seems to have gotten a bad rap over the years. The right chemistry can work against a world of odds when it comes to successful relationships. Many people feel that it is what gets couples through those initial years of marital cohabitation. Whatever the reason chemistry is generally a great thing to have working in your favor in your relationships.

What you may not know about chemistry in relationships is that it can run both hot and cold –even for the same person. It comes and goes like the tides. Some times it seems that you and your mate cannot get within a few feet of one another without setting the world on fire. Other times you can’t seem to muster a spark.

Chemistry moves in waves just as our emotions move in waves. It can be diminished by doubt, uncertainty, confusion, anger, resentment, exhaustion—all the things that have a tendency to be a downer. On the other hand when things are going well, there is no (more…)

15.07.2011 Chemistry No Comments

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