ACIDS AND BASES The reason that acid-base reactions are so important is that many of the things you come into contact with on a daily basis are either acids or bases. Most fruits are acids‚ as are carbonated beverages‚ tea‚ and battery acid. Common household bases include baking soda‚ ammonia‚ soap‚ and antacids. What are acids and bases? There are not one but three common definitions used to describe acids and bases: 1. Arrhenius acids and bases 2. Brønsted-Lowry acids and bases 3. Lewis acids
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Science one world essay – Acid Rain Acid rain has been an important global issue for centuries. Although most acid rain is caused by human activities‚ some acid rain occurs naturally. An example of natural acid rain is erupting volcanos‚ they give off smoke containing water vapor‚ carbon dioxide‚ sulphur dioxide and nitrogen compounds. The sulphur dioxide and nitrogen compounds cause small amounts of acid rain near the volcano. Pure water is not an acid‚ but even clean rainwater is slightly acidic
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Acid Rain and the Effects of our Monuments and Churches The two controlled experiments that I chose to do‚ do not involve trees or plants‚ which I think a lot of people will be doing. I wanted to explore the devastation that acid rain does to our historic monuments and beautiful churches. My first controlled experiment is based on the Statue of Liberty. It is made of copper so I am using pennies in my experiment. (nps.gov. n.d.) My observation is that acid rain corrodes metals
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NUCLEIC ACIDS I.BASIC CONCEPTS II.CLASSES III.CHEMICAL NATURE IV.FUNCTION I.BASIC CONCEPTS NUCLEIC ACIDS polymeric macromolecules‚ or large biological molecules‚ essential for all known forms of life are made from monomers known as nucleotides Each nucleotide has three components: a 5-carbon sugar‚ a phosphate group‚ and a nitrogenous base If the sugar is deoxyribose‚ the polymer is DNA. If the sugar is ribose‚ the polymer is RNA. Together with proteins‚ nucleic acids are the most
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Depression is a Direct Indicator of Possible Suicide Depression is a serious illness that should be treated with utmost care. The long-term effects of depression can ultimately lead to suicide‚ which means those who suffer from its symptoms should seek appropriate medical care. A majority of individuals experience some kind of emotional sadness on a recurring basis for a variety of reasons. The relationships we co-construct influence how we feel. However‚ temporary sadness is not a component of
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A Research Paper: Depression Depression is defined as a mental illness in which a person experiences deep‚ unshakable sadness and diminished interest in nearly all activities. The term depression is used to describe the temporary sadness‚ loneliness‚ or blues that everyone feels from time to time. Depression is one of the most common mental illnesses. The illness affects all people‚ regardless of sex‚ race‚ ethnicity‚ or socioeconomic standing. Women are two to three times more likely
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GIVEN: TO DESIGN A 1000TPD CAPACITY H2SO4 ACID PLANT BASIS: 1 HOUR OF OPERATION. PURITY: PRODUCT WHICH IS TO BE MANUFACTURED IS ASSUMED TO HAVE STRENGTH OF 98% ACID. 1000TPD implies that we have Acid 1000 x 10 / 24 = 41666.67 Kg/Hr of 3 With 98% purity‚ the acid that is produced per hour = (98 x 41666.67) / 100 = 40833.34 Kg/Hr Kmoles of Sulfuric acid to be produced = 40833.34 / 98 = 416.667 Kmoles/Hr It’s assumed that overall absorption of the acid is 100 % = 416.667 / 1.0 Then‚ SO3 required
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severe depression affects more than 15 million people and that 15 percent of them eventually attempt suicide. This is more common than one may think. Depression is now the third-leading cause of death among people aged 14-19‚ claiming more lives annually than AIDS‚ diabetes‚ and cancer combined. What is happening to our teenagers that is making them feel that life is so bad that they have to hurt themselves? Isn’t that the question of the year? Well‚ let’s consider different types of depression‚ the
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Depression and pain: An Annotated Biliography Snapp‚ Dr. Cathrine. Personal Interview: Tallahassee September 20 2011. Doing my interview with Dr. Snapp i asked the following questions; what is depression‚ h what causes depression and can a person overcome depression. In Response Dr. Snapp s stated that depression is a chemical imbalance in the brain. Dr. Snapp also stated that a p person can overcome depression with the proper care and
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Depression The normal ups and downs of life and the feeling of sad and “the blues” from time to time might mean you may have a mood disorder. And if you have that feeling of emptiness and despair that has taken hold of your life and will not let go that could be a sign of depression. Depression makes it tough to function and enjoy life like you once did. And getting through the day can be very overwhelming. But not matter how hopelessness you feel you will get better. Understanding the signs and
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