Chemestry Lab Rates of Reaction (Picture from: http://sciencespot.net/Pages/kdzchem.html) The rate of reaction is how fast or slow a reaction is completed. This is important for factories and chemists all over the world. What happenes during a reaction is atoms or molecules that collide and form new molecules. You can affect this rate of reaction with: temperature of reactants or suroundings‚ surface area of reactants‚ if there is a catalyst present‚ but in theis lab the concentration was changed
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Aim: To react NaHCO3 with HCl to form NaCl and two other products and then calculate the mole relationships between NaHCO3 and NaCl and calculate a balanced equation for this reaction. Safety: • Wear safety goggles at all time • Handle all chemicals with care • Use equipment like tongs when handling warm/hot objects • If chemicals are spilt on self‚ wash off immediately • Stand at all times Hypothesis: The NaHCO3 will react successfully with the HCl and will form NaCl‚ H2O and
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Abstract We performed two trials of nine different variables of reactions to determine what increases/decreases reaction rates. The variables we used are hot/cold and room temperature water‚ a equal mixture of HCL and water‚ A equal mixture of NaOH and water‚ either a whole‚ broken‚ or finely crushed Alka-seltzer tablet. The fastest rate average was at 0.04 s (finely crushed Alka-seltzer with room temp. water). The slowest rate average is 8.02 s (Alka-seltzer with cold water). Introduction
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When one thinks of anthropology‚ the mind tends to skip to a foreign land with exotic people and customs‚ yet we often forget to pay attentions to the different cultures that are close to home. Throughout the past few decades‚ technology has had an increasing impact on our culture. The development in technology is driven by those who have a passion for delving deep into the underlying mechanics to unravel mysteries of the technology and to further develop it for both their own needs and the needs
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SOLICITED LETTER [Date] [NAME‚ COMPANY AND ADDRESS‚ ex. Tom Atkinson COMANY Inc. 14 Edith Street‚ Hackney West‚ ZIP POST CODE] Dear [NAME‚ ex. Tom Atkinson]‚ I will be obliged to accommodate your request to provide a reference regarding [NAME‚ ex. James Johnson]. As [YOUR POSITION‚ ex. Vice President] of [FIRM NAME‚ ex. PowerAccount Limited]‚ I have known [NAME‚ ex. James] for [DURATION‚ ex. the past four years]‚ during which time [he/she] was our [POSITION‚ ex. northern division sales
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SAMPANA‚ Claudine P. July 16‚ 2013 BSBA MA 4-1 San Miguel Corporation (SMC) Company Profile San Miguel Corporation (SMC) is a food‚ beverage and packaging company established in 1890 initially as a single-product brewery. The Company ’s extensive product portfolio includes beer‚ hard liquor‚ carbonated and non-carbonated non-alcoholic beverages‚ processed and packaged food products‚ meat‚ poultry‚ dairy products and a number of packaging products. SMC ’s flagship product‚ San Miguel
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Tarlac National High School Tarlac City Short Story Review #3 Respectfully Submitted To: Mrs. Catherine G. Martinez (English IV Teacher) Respectfully Submitted By: Kayla Gesril P. Bonete Iv-Jade I. Title Of The Book/Story: Charlie and The Chocolate Factory II. Author: Roald Dahl III. Classification: Fiction IV: Setting: a. Time: Not indicated b. Place: At the factory of Mr. Willy Wonka V. Characters: a. Protagonist/Major 1. Willy Wonka who in turn had a troubled childhood
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It is almost a month when we had our educational tour for our subject‚ History 23‚ which toured us in historical places of Batangas and Laguna. Packed with excitement to learn and to see ancestral things‚ I prepared my things up even before the exact date of our tour. It was on the first day of August 2012‚ Wednesday at 6:00 in the morning‚ when our journey which I called “time travel” begun. Our first itinerary was on the ancestral house of Dr. Jose Rizal in Calamba‚ Laguna‚ where our national
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Today’s laws are not as harsh as Hammurabi’s. They are more civilized. For example‚ none of today’s laws include amputating other people’s body parts. Hammurabi thought it was necessary to amputate arms‚ breasts‚ digits‚ etc. I believe our laws are better‚ overall because they do not incorporate corporal punishment. I think Hammurabi’s Code of Law was an excellent deterrent against crime‚ and very few people would try to break the law. I think this is due to how harsh the laws were. There was zero
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Ferdinand Emmanuel Edralin Marcos (September 11‚ 1917 – September 28‚ 1989) was President of the Philippines from 1965 to 1986. He was a lawyer‚ member of the Philippine House of Representatives (1949–1959) and a member of the Philippine Senate (1959–1965). He was Senate President in 1963. He had been the leader of Ang Maharlika‚ a guerilla force in northern Luzon.[1] As Philippine president and strongman‚ his greatest achievement was in the fields of infrastructure development and international
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