Reminders: 1. In a neutral atom the number of protons equals the number of electrons. 2. An atom can NEVER gain or lose protons 3. The number of protons equals the atomic number NAME:________________________________________ Ion Practice Set 1. What is an ion? 2. What does the number next to the ions signify? Complete the following table‚ using the periodic table in the back of your book. ELEMENT NAME ION SYMBOL NUMBER OF PROTONS NUMBER OF ELECTRONS NUMBER OF ELECTRONS LOST OR GAINED
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seem more suitable than hydrogen. The possibility of hydrogen as a fuel is ever increasing‚ with the advantages outweighing the disadvantages more every year. Car manufactures are already making cars that are hydrogen powered‚ although they are either prototypes or extremely limited production runs‚ but cars such as the Honda Clarity prove that hydrogen powered cars really are not a thing of the future‚ but a thing of the present. ABOVE: The Honda Clarity‚ the first hydrogen powered car to have a
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Press Release and Reflection Summary Dorian Drake CJA 304 July 29‚ 2013 Theresa Williams Press release and Reflection Summary Latinos Riot for Community Changes in Anaheim Dorian Drake University of Phoenix July 29‚ 2013 Theresa Williams CALIFORNIA- Riots in the city of Anaheim began after a Latino man was fatally shot and killed by police officers. When the fatal shooting of another Latino man followed‚ anger finally erupted in the community causing riots and violent
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Classification of Chemical Substances Prepared for: Dr. Robert O’Reilly By: Kudaibergenov Baizak 20.11.2013 Nazarbayev University Introduction While many thousands of substances are known‚ they can be classified into a few simple categories based on type of bonding that exists among the atoms in the substance. Bonds are chemical forces that hold atoms together to form molecules or compounds. These categories are ionic‚ molecular and metallic substances. In ionic compounds valence
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FOR IMMEDIATE RELEASE Contact: Erika Abal 305.864.3434 eabal298@gmail.com THE WOMEN OF TODAY FASHION SHOW CAROLINA HERRERA & ST. JUDE’S CHILDREN RESEARCH HOSPITAL INVITE THEIR FRIENDS TO JOIN THE RELEASE OF HER NEW COLLECTION AUGUST 16‚ 2013 6:00PM CORAL GABLES‚ FL (August 16‚ 2013) – CAROLINA HERRERA returns one more year to the city of Miami together with St. Jude’s Children’s Research Hospital to release the designers
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Ion Exchange Chromatography Discussion: The first exercise preformed in this lab was ion exchange chromatography. The purpose of this experiment is to separate molecules based on their differences in charge. Since it is based on charge the amino acids in the cation exchange column‚ if negatively charged‚ flow through the column first because they don’t want to bind to the sodium ions. The positively charged ions will elute last at the highest ph because they bind to the negatively charged beads
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The Real Monster of the Midway Serial Killers are nothing new to today’s society. Jeffrey Dahmer‚ John Wayne Gacy and Ted Bundy shocked our nation with their violent‚ brutal‚ and at times unbelievable crimes‚ although none of them were as notorious as Herman Webster Mudgett better known as Dr. H.H. Holmes. A man that carried himself as a smart‚ intellectual member of society‚ but in reality he was a smooth talking conman and very disturbed individual. A man who designed and built a building with
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Water (H2O); Origin of Life By Mohammad Kamruzzamil Mojumder Contents Profile of water Physical properties of water Chemical aspects Chemical properties Reactions of water Importance in daily life Aspects as an energy resource Profile Water is a liquid at standard ambient temperature and pressure but it often coexists on earth with its solid state‚ Ice and gaseous state ‚steam (water vapor). It is a polar solvent but generally a weak electrical conductor and 65% of Human body weight is
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Reactivity of Halide Ions PURPOSE The purpose of this experiment is to observe the reactions of halide ions with different reagents by mixing them together. Materials 0.1 M AgNO3 0.1 M NaCl 0.1 M NaF 0.2 M KBr 0.2 M Na2S2O3 3% Starch Solution 4.0 M NH3 (aq) 5% NaClO (commercial bleach) 24 – well microplate thin – stemmed pipettes‚ 12 Safety DATA |PARTS |INITIAL MASS |FINAL MASS |CHANGE IN MASS | |
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Reactivity of Halide Ions Purpose: There are four halide salts used in this experiment that are found in the human body. Sodium fluoride is poisonous‚ but has been traced to be beneficial to humans in the prevention of tooth decay. Sodium chloride is added to many of our foods to increase flavor. Sodium chloride is important for many life processes‚ but too much intake is linked to high blood pressure. Sodium bromide is distributed throughout body tissues. Sodium iodine controls cell growth. The
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