(example: hydrogen) or a gas (example: Hydrogen). Matter can be classified as either a mixture or a pure substance or a mixture. There are two types of mixtures a homogenous mixture and a heterogenous mixture. A homogenous mixture is a mixture that has been thoroughly combined and has been turned into a solution. A heterogenous is a mixture in which the particles has not been thoroughly combined. All mixtures can be separated to get the back to its original form - a pure substance. A pure
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I picked the second quote‚ “trans fats should not be banned. Consumers should make their own choices about what they eat. The government should educate the population about the risks of eating foods with Trans fats‚ but then let people make their own decisions.” The way I look at this situation is‚ we do a lot of bad things to our bodies. We eat fast food‚ sugars‚ drink alcohol and plenty more. Everything that we take into our body systems‚ has some type of effect on our bodies‚ whether it be causing
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of a Mixture Purpose: To become familiar with the methods of separating substances from one another using decantation‚ extraction‚ and sublimation techniques. Apparatis and Chemicals: balance‚ Bunsen burner‚ rubber hose‚ tongs‚ 2 evaporating dishes‚ 2 watch glasses‚ 100-mL graduated cylinder‚ clay triangles‚ 2 ring stands‚ 2 iron rings‚ 2 glass stirring rods‚ unknown mixture of NaCl‚ NH4Cl‚ SiO2. Discussion: Mixtures are composed of two or more substances mixed together. Mixtures can
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REPORTIntroductionWater is a liquid that freezes and also melts at 32*F (0*C). Melting and freezing points are temperatures when a solid substance turns to a liquid. Liquid is a substance that flows to fit its container.Water Water is a liquid that is odorless‚ colorless‚ and tasteless. Water freezes and melts at 32*F (0*C). As water freezes it expands by one-eleventh. The amount of pressure on the water when it is freezing changes the melting point. Water that reaches 40*F it is at its maximum density. The molecules
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Analysis of an Unknown Mixture Performed: 2/13/14 Submitted: 3/3/14 Abstract: The purpose of this experiment was to separate and identify the two unknown compounds. The sample used was 105 and it contain 2-propanol and 2-heptanone. IR spectrums were taken of the contents of the second and sixth test tubes and showed the presence of an OH functional group and a small amount of ketone in test tube two and a large presence of ketone in test tube six. The average boiling points of the test tubes‚ 73°C
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Ban Trans-Fat Although fats are considered to be a part of our health‚ there are certain types that should be ignored. One of which has drawn controversial issues is trans-fat. Trans-fat is mostly found in many food sources such as vegetable oil‚ crackers‚ cookies and margarine. It increases blood levels of low density lipoprotein that is considered to be bad cholesterol‚ and decreases level of good cholesterol‚ high density lipoprotein. Trans-fat is created when oils are partially hydrogenated
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knew what was in the mystery mixture. After a long time of experimenting‚ the 8th grade scientist came to a decision on how they are going to figure what is in the mystery mixture. Once they started‚ they all looked at its physical properties. Then the scientists thought about the chemical reactions‚ and how that will help the claim the scientists had. More than half of the scientists thought it was baking soda and citric acid. When combining baking soda and citric acid together‚ the physical properties
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Institute a State-wide Ban of the Use of Trans Fat? Trans fats are a type of fat often used in preparation of fried foods in order to enhance the flavor and‚ in some cases‚ increase the shelf life of a product‚ but these inexpensive‚ artificially produced fats have been liked to heart disease because they increase levels of bad cholesterol in the body while lowering levels of good cholesterol and that is why I agree that we should ban the use of trans fats in New Jersey restaurants and food establishments
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Metaphor of the Melting Pot Peggy Ruth Geren The melting pot has been used metaphorically to describe the dynamics of American social life. In addition to its descriptive uses‚ it has also been used to describe what should or should not take place in American social life. How did the term originate? How was it used originally? How is it used in contemporary society? What are some problems with the idea of the melting pot? How is public education connected to the idea of the melting pot? How does
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Experiment 1: "A cis to trans conversion" Saturday‚ June 25‚ 2005 4:19 PM Notes on Theory • Alkenes o They are hydrocarbons with a C=C double bond • Double bonds are stronger and more reactive than single bonds o Hydrocarbons with double bonds used to be known as "olefins"‚ because they had an oily appearance • "Oleum" means oil • "Ficare" means make • Isomers o Geometric isomers have the same molecular formula‚ but a different geometric arrangement • They also have different physical properties
Free PH Acid dissociation constant Buffer solution