Experiment no. 2 Classification of Matter Morillo‚ Mary Jane J. Nidua‚ Maria Angelene Group no. 2/Chemistry Lab./Engr. Ma. Jeanette U. Obias Abstract The classification of matter was demonstrated through simple activities of mixture‚ heating and magnetic attraction describing its physical state ‚ its chemical reactions and its separation to other substances. Simple reagents such as Iron filings and Sulfur powder in our experiment were considered as elements‚ while solid mixtures such
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CANCER : CAUSES AND WAYS TO OVERCOME Introduction * Cancer is a term used for diseases in which abnormal cells divide without control and are able to invade other tissues (Source: Cancer Free‚ Philip Bashe‚ Simon & Schuster‚ 1994). * Cancer cells can spread to other parts of the body through the blood and lymph systems (Source: Cancer Free‚ Philip Bashe‚ Simon & Schuster‚ 1994). * There are many types of cancers such as prostate cancer‚ breast cancer‚ lung cancer‚ stomach
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in the liquid state. Thus liquid water has to be converted into steam first. To convert 2 moles of liquid water into 2 moles of steam‚ an additional 82 kJ of energy is required. By using Hess’s Law‚ ΔH + 2(799) + 2(41) + 4(460) = 4(410) + (496) ΔH = -888 kJ mol-1 Alternative: energy absorbed during bond breaking = 4(410) + 2(496) = 2632 kJ energy released during bond forming = 2(799) + 4(460) + 2(41)
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*Cancer* Cancer (medical term: malignant neoplasm) is a class of diseases in which a group of cells display ’’uncontrolled growth’’ (division beyond the normal limits)‚ ’’invasion’’ (intrusion on and destruction of adjacent tissues)‚ and sometimes ’’metastasis’’ (spread to other locations in the body via lymph or blood). There are over 150 types of cancers. Cancers in teens:- 1. Osteosarcoma (Pronounced: os-tee-oh-sar-koh-muh) is the most common type of bone cancer.
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Estimating Osmolarity of Plant Cells Criteria Assessed: DCP Introduction In this experiment you will be estimating the osmolarity of potato cells by finding their change in weight in solutions of known molarity. The object is to find the molarity where the mass does not change. No net change in weight indicates that there has been no net gain or loss of water. This is a means of indirectly finding the osmolarity of the cells themselves. Apparatus 1 large potato Petri dish 7 x 250 ml beakers
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------------------------------------------------- Colorectal cancer From Wikipedia‚ the free encyclopedia Colorectal cancer | Classification and external resources | Diagram of the lower gastrointestinal tract | ICD-10 | C18-C20/C21 | ICD-9 | 153.0-154.1 | ICD-O: | M8140/3 (95% of cases) | OMIM | 114500 | DiseasesDB | 2975 | MedlinePlus | 000262 | eMedicine | med/413 med/1994ped/3037 | Colorectal cancer‚ commonly known as bowel cancer‚ is a cancer from uncontrolled cell growth in the colon or rectum (parts
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Erica Osorio 5057497 Christian Roque and Rogerlio The Mechanisms by which E.Coli Cells Developed Immunities toward Ampicillin due to Plasmid and DNA Consumption U34 Abstract During the ampicillin experiment the ability to transform cells to make them adaptable to their environment was studied. The E.coli bacterial cell was used in order to observe how its DNA was able to change and develop immunity towards ampicillin. In order for this change to occur the use of several
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Name _____________________ The Human Cheek Cell Microscope Lab Period: _____ Date: _________ Problem: What kind of tissue are you able to observe from your cheek sample? Objectives: To learn the parts of and how to use the microscope. To find specimens using low‚ medium‚ and high power. To make a wet mount slide. To view your own (or your partner’s) cheek cells under the microscope. To compare plant and animal cells. Procedure of Investigation 1. Add one drop of methylene blue
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Cancer Right now‚ cancer is one of the most feared diseases in the world. In the early 1990s almost 6 million new cancer cases developed and more than 4 million deaths from cancers occurred. Also more than one-fifth of all deaths were caused by cancer and it has been predicted‚ by the American Cancer Society‚ that about 33% of Americans will eventually develop this disease. This is a huge disease that is killing people all over the world. The field of cancer study is called Oncology. The government
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and neck cancer is a broad term that describes many different cancers that start in the head and neck. Most oral‚ head and neck cancers begin in the cells that make up the moist tissues (mucosal surfaces) of the mouth‚ nose and throat. Like other cancers‚ these cancers occur when abnormal cells begin to grow and divide uncontrollably and form a mass‚ called a malignant tumor. Doctors identify oral‚ head and neck cancers by the area in which the cancer begins: Lip and oral cavity cancer occurs
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