It is what happens when matter interacts with other matter Chemistry: A Blend of Science and Technology * Scientists develop models‚ conduct experiments and seek patterns * They work on discoveries of other scientists from before * Chemical techniques and processes were invented by early chemists (making medicines‚ growing crops‚ shaping metals‚ glassware‚ distillation) Chemistry‚ Technology‚ Society‚ and the Environment * STSE- science‚ technology‚ society and the environment
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EFFECTS OF DRUG ABUSE ON ACADEMIC PERFORMANCE INTRODUCTION Drugs are chemical substances either synthetic or natural when taken that alter the normal physiological functioning of the body. Drug abuse relates to excessive use of psychotropic substances resulting to changes in behavior and normal functioning of the body. This paper looks into the effects of drug abuse (on academic performance)‚ the common drugs abused and ways and means of mitigating the same. It also looks into the common
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Making aspirin Pass Introduction: In this assignment I will describe making aspirin by using Method 2. Risk assessment: |Hazardous chemical or | | | |microorganism being used or made‚ | | | |or hazardous procedure or |Nature of the hazard(s) |Control measure
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through the reaction unchanged. When you encounter net ionic equations on the SAT II Chemistry test‚ you’ll need to remember the following solubility rules‚ so memorize them! Also keep in mind that net ionic equations‚ which are the bare bones of the chemical reaction‚ usually take place in aqueous environments. Here are those solubility rules: Most alkali metal compounds and compounds are soluble. Cl-‚ Br-‚ I- compounds are soluble‚ except when they contain Ag+‚ ‚ or Pb2+. F- compounds are soluble
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personal opportunity‚ in large part due to the many ways chemicals have been put to work for us. For example‚ drugs whose effects range from curing previously fatal bacterial infections‚ reducing the impact of AIDS‚ minimizing heart disease‚ decreasing age- related wrinkles‚ to reducing hair loss are widely available today. The many benefits of the diverse uses of our natural resources are an outcome of careful scientific research and of using chemicals in an appropriate and safe manner. Toxicologists‚
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Separation of a Mixture of Sand and Salt Goal(s): To separate a mixture of sand and salt and to find the percent of each component by mass of each mixture Background Theory: A mixture is a combination of two or more pure substances in which each pure substance retains its individual chemical properties. Mixtures can be separated by physical processes such as filtration and evaporation. Filtration is a process where solids and liquids can be separated. The liquid that passes through the filter paper is called
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simulated pharmaceutical preparation Panacetin‚ a proposed type of pain-killer. Panacetin is typically made up of sucrose‚ aspirin‚ and acetaminophen‚ but the third component in this experiment is unknown. The unknown component is suspected to be a chemical relative of acetaminophen‚ either acetanilide or phenacetin. Using techniques such as extraction‚ evaporation‚ and filtration‚ the three components will be isolated based on their solubilities and acid-base properties. The percent composition of
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Chapter 6 - Answer Key to Section Review 1-3 Section Review 1 1. What is the main distinction between ionic and covalent bonding? Answer (A): Ionic bonding involves the electrical attraction between large numbers of anions and cations. Covalent bonding involves the sharing of electron pairs between two atoms. Translation: -Ionic bonding happens between a metal and a non-metal (east coast and west coast) -One atom completely donates its valence electrons to another atom -Metals
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was profound enough to test. Our group decided to see how different chemical substances affect radish plants‚ and which substance will kill the plant fastest. We planted 8 germinated radish seeds‚ then put ammonia in 2 of the plants‚ vinegar in 2 other plants‚ put both vinegar and ammonia in 2 other plants‚ and had the last 2 plants as our controls. We observed the plants in a period of 6 weeks‚ each week we added 1mL of each chemical to each of the plants and 30mL of water each week. We then recorded
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Classes of Chemical Reactions Whenever a reaction takes place‚ energy is changed as well when the substances react chemically. Scientists have taken these changes in energy and generalized them. Scientists can take these generalizations and discover more about the nature and tendencies of matter. In this lab‚ the purpose was to perform seven reactions‚ write down their equations‚ and identify the type of reaction. In this lab report‚ several methods of displaying this information will be applied
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