1. Hydrogen Name: Hydrogen Atomic number: 1 Atomic Weight: 1.00794 grams/mole Standard state: gas at 198 K Hydrogen is the lightest Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up above 90% of Universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because
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29) The structural formulas are given for these cis or trans alkenes. (a) trans-1‚2-dichloropropane (b) cis-2-pentene (c) cis-3-hexene (d) trans-2-hexene Write the structural formula for: (a) cis-1‚2-dichloropropene (b) trans-2-pentene (c) trans-3-hexene (d) cis-2-hexene 30) In each case‚ tell whether cis and trans exist. If they do‚ write the structural formulas for two isomers and label each cis or trans‚ (a) Br2CH2 : No (b) CH3CH2CH=CHCH2CH3: Yes (c) CH3CH=CHCH3:
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Newton`s Second Law – Lab Report Name: Tasneen Ahsan Date: 19th November‚ 2012 Purpose To show how the acceleration of an object changes when‚ the mass changes and the net force is kept constant and when the mass is the same.. Hypothesis I predict that by changing the mass of the object will result in a change in the acceleration as Newton`s second law states that the magnitude of the acceleration of any object is directly proportional to the magnitude
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think about virtual reality? Most people think that virtual reality is video games or even computer games that you are able to communicate with other people from all over the world. The world of virtual reality is all around us. From watching television to working on homework assignments on your computer‚ almost everything that we do uses some kind of virtual reality. There are many aspects that are being used by many different kinds of professionals like dentists‚ astronauts and even our law enforcement
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Visual Merchandising is the art of displaying merchandise in a manner that is appealing to the eyes of the customer. It sets the context of the merchandise in an aesthetically pleasing fashion‚ presenting them in a way that would convert the window shoppers into prospects and ultimately buyers of the product. A creative and talented retailer can use this upcoming art to breathe in new life into his store products. Passion for design and creativity are essential to be a good visual merchandiser. A
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Bosnia-Herzegovina: 1992-1995 In Bosnia-Herzegovina‚ their was a conflict between three main ethnic groups. They were the Serbs‚ the Croats‚ and the Muslims. The conflict resulted in genocide committed by the Serbs against the Muslims in Bosnia. Bosnia is one of the countries that emerged from the break-up of Yugoslavia. Yugoslavia became a multicultural country after WW1. Yugoslavia was defeated by the Western Allies. During WW2‚ Yugoslavia was invaded by Nazi Germany and was divided. Tito
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What is a Virtual Machine? A virtual machine is an instance of an operating system that is hosted on a physical machine by means of a software Virtualization platform. A virtual machine appears as a physical machine to the outside world and can be accessed as such. Because the Virtualization Platform presents physical machine resources to the Virtual Machines as generic resources‚ Virtual Machines do not require hardware specific drivers and can be ported across physical machines. According to VMware
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1. General Administrative Tasks Cut Costs and Expand Your Business Productivity with Administrative Help from a Remote Office Assistant. This is a big time saver for any business. Have a Remote personal assistant (with a 3 year university degree) to do your busy work for you. Imagine all the time you will save when an administrative assistant takes over many of your office support tasks. From presentation creation and data entry to answering phones and personal tasks‚ a general tasks VA is there
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Introduction Maintenance of law and order in any society has been the cornerstone of development in many societies over a long period of time. Thus‚ a societal structure needs to be developed for it to promote and protect the law and order in the society. Communities have in the past been at the forefront in initiating law and order enforcement programs within their locality to enhance a peaceful and progressive society. To be able to run such a program‚ communal groups are supposed to oversee
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CHEM 1405 Name:_____________________ Exam # 1 (Chap. 1- 3) Score: PART I – Multiple choice : (3 points each) -------1. What is the term for the study of the composition and properties of matter? a. geology b. chemistry c. alchemy d. physics -------2. Express 10‚000 as a power of 10. a. 103 b. 10-5 c. 104 d. 105 -------3. How many significant digits are in 0.0250 cm3? a. 5 b. 2 c. 3 d. 4 -------4
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