Quiz #1 Attempt 1 Written: Jul 7‚ 2012 9:48 AM - Jul 7‚ 2012 9:50 AM Submission View Your quiz has been submitted successfully. Question 1 1 / 1 point At what time do you have to complete your online prelab assignment to be allowed to participate in the lab? Question options: A week before the lab Day before the lab at 10 pm The morning of lab day at 8 am One hour before the lab Question 2 1 / 1 point Which materials/chemicals belong in the desiccator? Question options: Drying
Premium Acetic acid Carboxylic acid Ester
GOVERNMENT OF TAMILNADU STANDARD NINE TERM I VOLUME 3 SCIENCE SOCIAL SCIENCE NOT FOR SALE Untouchability is Inhuman and a Crime A Publication Under Free Textbook Programme of Government of Tamilnadu Department of School Education © Government of Tamilnadu First Edition - 2013 (Published under Uniform System of School Education Scheme in Trimester Pattern) Textbook Prepared and Compiled by State Council of Educational Research and Training College Road‚ Chennai - 600
Free Cell Eukaryote Bacteria
NPTEL – Chemistry – Reagents and Organic reactions Module II Lecture 14 Reduction Reactions 2.1.1 Lithium Aluminum Hydride (LAH) 2.1.1.1 Introduction Lithium aluminum hydride (LAH) is a strong reducing agent with chemical formula LiAlH4. It can reduce a variety of functional groups such as aldehydes‚ esters‚ acids‚ ketones‚ nitriles‚ epoxides and azides. It vigorously reacts with water and all the reactions are performed in polar aprotic solvents. 2.1.1.2 Preparation It was first
Premium Hydrogen Alcohol
Tea tree essential oil is an essential oil of the odor of camphor and its color ranges from pale yellow to nearly colorless. Tea tree essential oil is found in supermarkets and pharmacies‚ one of the best tea tree essential oils is Paul Mitchell tea tree oil which we will talk about later. You will be amazed of
Premium Tea tree oil Essential oil
The black death was a devastating plague that spread throughout Europe from 1346 to 1353. It is estimated to have killed about 1/3 of the European population. During this time period‚ the chances of surviving were very slim. The bubonic plague was the largest and most destructive plague of the 14th century. The plague first arrived in Europe by sea in October of 1347 by Italian merchants who docked their ships at the Sicilian port of Messina. Most of the sailors aboard the ships were dead and those
Premium Black Death Bubonic plague Medieval demography
University of Santo Tomas Faculty of Pharmacy Organic Chemistry Laboratory RECRYSTALLIZATION OF ACETANILIDE USING WATER AS SOLVENT Lagarteja‚ M.C.B.; Lim‚ H.G.N.; Lizo‚ K.J.R.; *Macalino‚ M.D.L.; Macapala‚ C. 2D-Pharmacy‚ Faculty of Pharmacy‚ University of Santo Tomas Abstract Recrystallization is a technique used to purify organic solids. This method involves dissolving of a solute in a solvent and inciting the solute to produce a precipitate from a solution. In this experiment‚ acetic
Premium Solvent Solubility Temperature
About aloe vera and lavender * Acid inside Aloe vera is used as effective pain killers. * Antiseptic made from Aloe vera is used to kill mold‚ bacteria‚ funguses and viruses. * Aloe vera uses include help in skin blemishes. * Acne is treated by Aloe vera gel and it’s really effective. * Aloe vera also helps in stopping baldness. * Important Aloe vera uses include relief from cuts‚ bruises and burns. When we are talking about Aloe vera uses‚ you will be surprised
Premium
The Time Machine The history of this short novel is imformational. It shows Wells developing and exploring the idea consistently over several years‚ as his rate of production would restrain him from ever doing again. In many ways‚ The Time Machine is his most complete work; a thorough development of the Darwinian ideas he had absorbed at the Normal School of Science and that would form the bedrock of everything else he did throughout his career. (. N.p. Web. 7 Feb 2014.)
Premium Future The Time Machine Time travel
Introduction An essential oil is a concentrated hydrophobic liquid containing volatile aroma compounds from plants. Essential oils are also known as volatile oils‚ ethereal oils or aetherolea‚ or simply as the "oil of" the plant from which they were extracted‚ such as oil of clove. Volatile oils are the odorous and volatile products of various plant and animal species. As they have a tendency to undergo evaporation on being exposed to the air even at an ambient temperature‚ they are invariably termed
Premium Essential oil Ethanol Citrus
CHAPTER ONE 1.0 INTRODUCTION As we are moving rapidly towards the twenty first century‚ the development within the world of science and technology is moving even faster. Just think of the everyday situation‚ where you go to a store to buy yourself a computer‚ and as you leave the store‚ noticing the door closing behind you‚ it occurs to you that the value of your loving computer already has decreased. This is caused by the tremendous research in the microelectronics‚ which has changed a lot
Premium Carbon nanotube