we can learn to observe physical properties of varying substances as well as to use chemical reactions to observe chemical observe the chemical properties of varying substances. In experiment #1‚ we were able to detect physical properties of the aluminum and copper sulfate simply by looking at the substances. We then combined the two substances to see if they would create a chemical reaction and test the chemical properties. After being combined‚ bubbles and gas were created and the color of the
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effectiveness at mass annihilation. Two of those weapons include chemical and biological weapons. These weapons are constructed solely to kill mass populations in the quickest amount of time as possible. Their most startling aspect is the cruelty in which lives are extinguished and brutalized. However‚ these two weapons are latently different. The definition of a chemical weapon is a weapon that uses any amount of toxic properties or chemical substances and that is intended to kill as an act of war. Biological
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CHEMICAL PARAMETERS OF FRESHWATERS Objectives At the end of this section‚ students should be able to 1. Distinguish between freshwaters and seawater in terms of ionic composition. 2. Describe the variation of ionic composition in natural freshwaters and other inland waters. 3. Explain the factors that contribute to such variation. 4. Describe Gibbs’ model that explains the major factors contributing to variation in chemical composition of inland waters. 5. Explain
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Chemical engineers today face a major dilemma when it comes to deciding what should hold paramount‚ economic gain or moral statute? Many practicing engineers are faced with problems that result from the consequences of their engineering decisions. Engineers have to realize the importance of proper engineering decisions and how one should act when faced with a problem such as deciding what comes first safety or economic gain. When faced with such a problem‚ engineers often employ the risk-benefit
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Chemical Warfare Final Draft Do you think it’s right to use chemical toxins to harm or kill people who are defending‚ or fighting for their lives? I don’t and that is why I am aganist chemical warfare. There are other ways which can be used to defend your country without taking away the lives of many people in such a barbaric fashion. Chemical warfare takels many innocent lives even when they haven’t done anything wrong! Chemical warfare is a way of torturing people with nerve‚ blister‚ and choking
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Observations of Chemical and Physical Changes Hands-On Labs‚ Inc. Version 42-0182-00-03 Abstract: Observations: Exercise 1: Observations of a Chemical Change Data Table 1. Chemical Reactions. Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid A2 NaOCl Sodium Hypochlorite KI Potassium Iodide Observation 1: + Add 2 drops of starch Observation 2: A3 KI Potassium Iodide Pb(NO3)2 Lead Nitrate
Free Chemical reaction Hydrochloric acid Sodium bicarbonate
Observations of Chemical Changes Purpose: The purpose of this experiment is to observe chemical changes in common consumer products to determine if the chemicals are basic‚ acidic‚ or remain neutral when mixed with other chemicals. Procedure: In this experiment‚ various chemicals were mixed together‚ to determine a reaction. Using two drops from chemical 1 and two drops of chemical two‚ unless otherwise stated‚ then recording the type of physical reaction or color changes that occurred.
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Is Organic Food Worth the Extra Cost? With technology reigning‚ it’s no wonder that in today’s world‚ food is being processed more quickly and efficiently to feed millions of mouths a day; however‚ there are also a handful of people who decide not to eat processed foods which is why in recent years‚ organic foods have begun to rise in popularity. Most people purchase organic foods because they believe it is healthier for them and that it pledges to be 100% pesticide and chemical free. Unlike non-organic
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FOOD SCIENCE PRESENTATION BY GROUP FOUR INTRODUCTION TO FOOD SCIENCE AND FOOD TECHNOLOGY Food is the basics for every human life since most of the health problems have a nutritional implication‚ hence it has the basis from the food we eat and how technology is used to manage the quality of food. Therefore‚ in order to maintain good health and avoid deficiency disease‚ Food science and technology is important. Food is anything edible‚ non toxic‚ be it liquid or solid when ingested‚ digested and
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Healthy food vs. Fast food Many years ago‚ people ate food that do not contains‚ preservatives; moreover‚ people used to spend a lot of time cooking their own food. Therefore those people did not have problems by the food that they ate‚ because all the food that they ate was natural and healthy. However‚ nowadays many people‚ particularly young people prefer to eat fast food such as hamburger‚ pizza or fried chicken. As we can see there are two kind of food: healthy food and fast food. One way to
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