is Synthetic Cannabis it is an herbal and chemical item that when smoked‚ mimics the effects of marijuana. It is best known as legal spice or K2. (http://web.ebscohost.com.ezproxy.apollolibrary.com/ehost/detail?vid=3&hid=106&sid=59ce6c0d-f7a1-4779-a1b8-6cab4e630f4d%40sessionmgr104&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=mnh&AN=21702397). There has been an increase in drug abuse by the use of legal spice which is mixed with different chemicals such as JWH-018. JWH-018 was first developed
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Chemical and Physical Changes in Matter Purpose: The purpose is to observe chemical and physical changes and to identify each. Procedure: Do experiments 1-8 as directed by the handout. Data and Results: Experiment | Observations | Type of Change | Supporting Evidence | 1 | -After a few seconds‚ yellow smoke was produced-Wood splinters are becoming black-Bottom part of test tube has black color on the sides-Some woods splinters have been burned to ash-Middle of test tube has yellow
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INTRODUCTION There are many dangerous chemical in our surroundings; most o them can be located inside our own homes‚ almost every household would contain cleaning liquids like liquid detergent‚ mildew removers‚ insecticides and many other harmful chemicals; that is the reason why we decided to focus this investigatory project on creating an eco- friendly cleaning solution. The problem of the modern world is that we have created far too much hazardous chemical since it does the daily chores‚ like
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purpose of this lab was to differentiate chemical changes from physical changes. During the separation lab we were given a test tube with Styrofoam‚ sand‚ salt‚ and Iron fillings in it‚ our goal was to issolate each component from the other. We were given certain tools and materials to help us figure out how to divide the components‚ therefore creating our lab. Doing this lab helped us figure out what component used physical change and which used chemical change‚ it also showed us which one was an
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widely used operation for purifying organic solids that differ in their solubility at different temperature. The objectives of this experiment are to purify an impure solid‚ and calculate its percentage yield. It is a way of effective recovery of a substance mixed with another to produce a pure compound. With their differences in solubility you can separate them by dissolving the mixture then filter out the impurities in the process. In this experiment‚ aniline is the primary compound used to acquire
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materials can be lower than 0.5%. Sand dryer is mainly applied to drying river sand‚ dry-mixed mortar‚ yellow sand‚ cement clinker‚ clay‚ coal gangue‚ mixtures‚ coal ash‚ gypsum‚ iron powder and other raw materials‚ widely used in building materials‚ chemical industry‚ casting industry and other industries. Sand dryer working principle: Sand sent to the hopper by the belt conveyer and bucket elevator‚ and then through the hopper feeder into the feeding pipe‚ thereby entering the feeding end. The
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This experimental procedure uses compounds from spinach leaves that are exposed to chromatography‚ TLC plate to indicate the different pigments within the spinach extract. ‘Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds’ (Wikipedia‚ 2011). This method is similar to thin layer chromatography‚ but the compounds in the mixture are collected separately. Green dye is used in this experiment that consists of blue and yellow constituents
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1 UNIT 9 CHEMICAL KINETICS 1. (c) mole 1–1 sec–1 The rate law for a reaction A + B →products‚ is rate = k [A]1[B]2. 7. Then‚ which one of the following statements is false ? (a) If [B] is held constant while [A] is doubled‚ the reaction will proceed twice as fast. (b) If [A] is held constant while [B] is reduced to one quarter‚ the rate will be halved (c) If [A] and [B] are both doubled‚ the reaction will proceed 8 times as fast. 2. Fro a first order reaction‚ a straight
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tongs remove the beaker from the hot plate and place it on a hot pad. 8. The salt will be left at the bottom of the beaker. Questions: 1. What is a mixture? 2. What other ways could you of separated the mixture? 3. What substance was the easiest to remove from this mixture? Why? Separation of Iron‚ Salt and Sand Separating a mixture is an example of a physical change. There are several ways to separate a mixture. The use of one’s hands in pulling the parts of
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mateo‚ Isabela (name) Abstract Most of us spend about 90%of our time indoors‚ so minimizing the use of harmful chemicals in our homes‚ offices and schools is important to keep the air we breathe healthy and constructed surfaces we live on free of irritants and toxins. Besides being expensive‚ store-brought cleaners contain a number of chemicals. These chemicals can be hazardous to our health and are not necessary to have a clean home. Making our own household cleaners saves money and
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