Binary Compounds w/ Fixed Charge Given The Formula‚ Write The Name Binary Compounds w/ Fixed Charge Given The Name‚ Write The Formula Binary Compounds w/ Variable Charge: Stock System Given The Name‚ Write The Formula Binary Compounds w/ Variable Charge: Stock System Given The Formula‚ Write TheName 1) MgO 2) LiBr 3) Ca3N2 4) Al2S3 5) KI 6) SrCl2 7) Na2S 8) RaBr2 9) MgS 10) AlN 11) Cs2S 12) KCl 13) Sr3P2 14) BaI2 15) NaF 16) CaBr2 17) BeO 18) SrS 19) BF3 20) AlP 21) Rb2O 22) CaI2
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Unit 6 Lab Report 1. Objective: To find the percent composition of water in an unknown hydrate. 2. Materials: Goggles‚ apron‚ evaporating dish‚ hot plate‚ and stirring rod 3. Procedure: get the mass of a evaporating dish‚ put a sample of the hydrate onto the evaporating dish and mass the dish with hydrate. Put the dish with hydrate on the hot plate on high heat. Break up any clumps that form during the heating process. Observe any color
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Brandie Hunter Mrs. Houston COS 116 1 February 2011 History of Haircoloring The first major break through in hair coloring history came in 1863‚ when chemist Dr. August Wilhelm Von Hofmann reported the dye properties of paraphenylenediamine. His discovery led to the birth of the synthetic hair dye industry‚ and PPD still Dominates the field today. Hofmann was also known for his studies of organic derivatives of ammonia and for discovering the first unsaturated alcohol and
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Investigation 3 Student ID E12008926 Evguenia Kelley Section1 The purpose of the lab is to identify the compound based on a constant composition by performing a serious of tests. The hydrate is solid crystals compound and appears to be dry: since an ionic compound (salt) is crystallized from an aqueous solution (water)‚ by heating the hydrate the water is released from ionic structure; therefore it is possible to measure the weight of the ionic compound and calculate
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Biology 1.3 – The Use and Abuse of Drugs Lesson | Learning Focus‚ Outcomes and ideas | Syllabus content (Summary) | Activities (Including HWS focus) | Homework | Resources | SEAL / PLTS ETC/Extension | 6 | FFL: New Drugs Outcomes: All pupils should be able to define the term ‘drug’ and give examples of medical drugs.Most pupils should be able to explain why drugs need to be tested before they can be prescribed. Describe the uses and problems associated with thalidomide.Some pupils will be able
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From a chemical perspective‚ what is oxygen? Identify its atomic number‚ the group it fits into OXYGEN in the periodic table‚ its chemical formula‚ its melting point‚ boiling point and state at room temperature. Oxygen is highly reactive‚ nonmetal‚ oxidising agent that readily forms oxides‚ it is an element. By mass‚ oxygen is the third-most abundant element after hydrogen and helium. The Atomic Number: 8 Group: The chalcogen group Chemical formula: 02 Melting
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Hi‚ my name is water molecule! H2O for short. I live in the bottom of a well. I come from 2 hydrogen atoms‚ but I have an oxygen atom in me! Down here in my well‚ we have a swell time together. In our liquid state‚ we are not too far apart‚ nor too packed together. It’s really great being a liquid! I feel bad for my cousin CO2. He is probably sublimating into a gas from a solid‚ or as a gas‚ freezing back into a solid. He has no melting point‚ only a freezing and boiling point. I’m SO glad I will
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THE CHEMISTRY OF ORGANIC MOLECULES I. MACROMOLECULES-large molecules that are composed of smaller molecules and atoms that are bonded together. These are among the largest of all chemical molecules. A. Polymers-the largest of the macromolecules. These are composed of numerous‚ small identical subunits known as Monomers. There are 4 major polymers that are important for living organisms. These polymers are; carbohydrates‚ lipids‚ proteins and nucleic acids. B. Polymers
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Scientific Method/Molecules Unit 1 Saudat Adamson American Intercontinental University Antionett Grant-Hall August 28‚ 2011 Introduction: More people recognize the Ruby-Throated Hummingbird; one reason could be that it is usually disseminated throughout North America. The Ruby-Throated is the only type of hummingbird that roost in the eastern part of United States and is easily recognized among bird watchers because of the color of their feathers (Mayntz‚ M.‚ n.d.).
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Organic chemistry 201 | Mixed Melting Points | Determination of an Unknown Solid | | [Type the author name] | 9/15/2011 | Purpose : The main purpose of this experiment was to identify an unknown compound/substance by performing multiple experimental melting point tests. Pure and impure solids were tested to see what affect pureness/impureness had on a melting point. Background: The melting point of a solid can be used to determine the purity of the solid. Pure samples usually have
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