Chemical compound

and regulate publications about the relationship between medical and recreational cannabis. Cannabis may be defined as a psychoactive drug, a chemical substance that changes brain…

Chemical changes are everywhere from everyday things such as baking to scientific things such as changing one gas into another. Physical changes are changes that can be observed with senses and change a certain property or properties to a substance but it still remains chemically the same. This can include changes in the state of matter, size and shape. Chemical changes are when the substance is changed chemically with its properties changing with it. The substance with change from one substance…

Identifying an Unknown Compound Using Various Chemical Analysis Techniques Joshua Nash and Aquilla Young Abstract The introduction of this lab report exposes the reader to the different scientific concepts that are to be used such as melting point calculations, retention factors, and solubility in various aqueous solutions. The experimental provides the basics of using a melting point apparatus, determining solubility, and performing thin layer chromatography. In the results section the findings…

In this experiment one, are determining the melting points of different crystalline substances following a specific procedure. By finding the melting point of a crystalline substance, it helps determine what kind of compound it is as well as initiate the purity. A DigiMelt apparatus can be used to determine the melting point where a small amount of the the substance is packed into a capillary tube and heated slowly in the apparatus which includes a thermometer, a heating coil and a magnifying…

Purpose: The objective is to separate the heterogeneous mixture of salt, iron filings, and salt into each pure form using filtration, evaporation, and magnetism. Background: When separating a mixture, preferably to separate a mixture that includes a soluble liquid and a insoluble solid, filtration is the best because solid molecules are bigger than liquid molecules. A filter contains pores that are small enough to let small partials though the pores while holding back the larger particles.…

The objective of Chapter 6: Compounds and Elements was to determine how to synthesize and decompose pure substances, distinguish the difference between compounds and elements, and to determine the difference between complete and incomplete reactions. Previous chapters that contained valuable background knowledge were Chapter 2: Mass Changes in Closed Systems and Chapter 5: The Separation of Mixtures. The Law of Conservation of Mass, which was tested in Chapter 2, proved to be vital in this…

1. The name of the technique, the chapter and the pages. The name of the technique presented in the CORE Teaching Reading Sourcebook is called the phonological medley. The phonological medley equips students with the ability to use two syllable compound words. This lesson model assists students in becoming familiar with blending, deletion and segmentation. It is presented on chapter five titled Phonological Awareness and the lesson is on page 132. 2. Why did the approach appeal to you? What…

LIN 3010 Word Formation Processes - Compounding o Obamacare: 2013 noun: term for the Affordable Care Act that does not have the same meaning as when the terms are broken. o Humblebrag: 2011 verb: when the two words are combined, the term’s meaning changes to an expression of false humility, especially be celebrities on Twitter. o Lumbersexual: 2014 noun: when the morphemes are stick together, the term means a fashionable rugged man who adopts the stereotypical dress and facial hair of a…

and anions, which then allowed the unknown substance to be identified by using logic trees of known solutions. Some qualitative characteristics of chemicals such as the formation of a precipitate, the color of the solution, and the color of the flame when the chemical was heated were used to create a logic tree, which allowed for the unknown compound to be identified with simple yes/no questions. Materials and Methods Part One: In the metal hydroxide test, the first step was to add 10 drops of…

solubility test was conducted on all compounds. Because they were all ionic, every known compound naturally dissolved in water, and conducted electricity. As the next determining factor in the process to identify the unknown substance, the compounds were tested in acetone. As seen in table 2, only one compound, Ca(NO3)2 was found to be soluble in this solvent. Because the unknown solid was insoluble in acetone, Ca(NO3)2 was then eliminated as a possible inorganic compound. The flame test did not…