Importance of chemistry : 1. Chemistry can improve the conditions of human life and even save lives. 2. Provides deeper knowledge. 3. * Plastics that are as strong as metals but light weight. * Personal care and household products * Polymers or various sizes and shapes * Metal alloys * Drugs from various ailment CONTRIBUTION OF CHEMISTRY : 1. Food and agriculture 2. energy production 3 . environment preservation 4 . education 5 . clothing 6. colors and
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JEET SCIENCE ACADEMY CHOWK AZAM (LAYYAH) TIME 2.5 Hr CHEMISTRY 1st YEAR CH # 1‚2‚9‚10 Marks: 85 G.Super . 1 Name…………………………………………...... Objective ROLL NO. ………………………………. Q.NO.1. Encircle the correct answer? (1×17=17) 1. Atoms of which one of the follelement have independent existance: (A) Flourine (B) Krypton (C ) Oxygen (D) Nitrogen 2.18g glucose is dissolved
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Sleep Sleep is a very important part of our daily life. A sound sleep makes a whole world of difference as it helps the body to recover from the stress and strain of the day. Thus‚ it can safely be said that it is not just a pit-stop for the body from top-to-toe to rest and repair itself. It helps to revitalize the will and sharpen the mind. After an adequate rest of between seven to eight hours‚ you spring out of bed and are ready to take on the world. On the other hand‚ getting up groggy and
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determine the concentration of an unknown solution of potassium permanganate. INTRODUCTION: UV Spectrophotometer has 4 main components which is the UV light source‚ the sample‚ detector and the processor/recorder. Spectrophotometry is a technique that uses the absorbance of light by an analyte (the substance to be analyzed) at a certain wavelength to determine the analyte concentration. Useful wavelengths for spectrophotometry range from 185 to 3‚000 nm. Spectroscopy is one of the most powerful analytical
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The Aztecs did many things in their daily life. Such as every kid had to go to school even slave children. The people responsible for running the schools were called priests. The girls mainly learned about marriage in school. Aztecs learned about religion and work skills. The Aztecs also had to learn about warfare‚history and citizenship. Also‚the Aztecs had four leadership and society classes called nobles‚commoners‚serfs and slaves. Something Aztecs enjoyed doing was to play music‚make arts and
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Comparison with reported results showed that the spin densities at the center of the molecule from the pure functionals of PBEPBE were underestimated. Based on the comparison made‚ it was concluded that among the methods considered‚ the suitable one for use in the calculations of pristine graphene was B3LYP. Keywords: Density functional theory; grapheme; Hartree-Fock; Møller-Plesset perturbation theory; spin contamination ABSTRAK Kesan pelumusan spin ke atas kestabilan dan ketumpatan spin di dalam
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Source: Chemistry by C. Mortimer PP 1-5 Chemistry by R.S. de Borja PP 1-5 Definition of Chemistry Chemistry is concerned with the composition and the structure of substances and with the forces that hold this structure together. And the changes that undergoes with the energy involved in them. History Chemistry which emerged‚ took hundreds of years to develop the history of its development can be divided ranging into five
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LPG imports cost $2.135 billion‚ while 5.965 million tons of naphtha cost $4.565 billion. (Source : www.upi.com/energy_resources ) Indians spend a considerable amount of their income towards fuel and related expenses (cost of transportation of daily necessities). Exponential growth of India’s economy has given rise to an exponential need for energy. Fossil fuels (coal‚ oil‚ natural gas) are the most commonly used fuel by people. Fossil fuels have been formed from decaying plant and animal matter
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Religion and philosophy affected daily life in both India and China. India has been an important part of three major world religions‚ Hinduism‚ Buddhism‚ and Islam. A article‚ diagram‚ and a video will help us figure out the main question. How did religion and philosophy affect daily life in both India and China. This article talks about Ancient India religions. Specifically Buddhism and Hinduism. In the article it clearly stated‚”Hinduism is a polytheistic religion (Hindus believe in many gods)
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Daily Management Introduction and Definition Daily Management is the system that provides the ability to manage departments‚ functions‚ and processes‚ wherein processes are defined‚ standardized‚ controlled‚ and improved by the process owners. Important aspect is that the management should be done on a day-to-day basis. This ensures that daily jobs and daily objectives are accomplished strictly on daily basis. There is a perfect control system built into daily management which does not ordinarily
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