HOW FAST ARE CHEMICAL REACTIONS? THEORY The study of reaction rates‚ how fast or how slow a reaction takes place‚ is known as chemical kinetics. The rate of chemical reactions varies greatly. Some reactions‚ such as the explosion of an atom bomb are uncontrollable. Reactions like the decay of radioactive carbon (14C) are so slow that it takes centuries to see any noticeable change. Between the two extremes are reactions that can be measured in the laboratory. There are several factors that
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For the past 8 years‚ I’ve lived in a centrally Caucasian dominant area‚ Cherry Hill‚ New Jersey. Starting in about 10th grade‚ I started to become interested in how many of my peers and friends in this area perceive black people and black culture as monolithic: they stereotypically imagine that all blacks are lazy‚ speak Ebonics‚ and "have an attitude". Throughout the course of my high school education‚ I was treated as "one of the exceptions"‚ meaning that to my white peers‚ and even black peers
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affecting Rates of a Reaction (Kinetics) KINETICS DESIGN LAB Research Question: Does the concentration of Potassium Iodide (KI) affect the rate of its reaction with hydrogen peroxide (H2O2) (of a fixed concentration)? Introduction: There are several factors that affect the rate of a reaction. Some of them being Pressure (if the reactants are Gases)‚ Temperature‚ Presence of a Catalyst‚ Surface Area of the reactant‚ and Concentration. According to the Collision Theory‚ during a reaction‚ particles
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HOW INTEREST RATES AFFECT OUR PURCHASING DECISIONS Fluctuating interest rates have a decidedly large impact on purchasing decisions. Higher interest rates mean that consumers don’t have as much disposable income and must cut back on spending. When higher interest rates are coupled with increased lending‚ banks makes fewer loans. Lower interest rates make it easier for farmers and manufacturers to borrow to invest in equipment and buildings. That gives business more incentive to invest
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Observing Enzyme Activity Purpose: The purpose of this experiment was to test whether the pH affected the enzyme reaction rate. Hypothesis: If the enzyme is in a basic solution‚ then it will react faster because the enzyme (catalase) reacts better in basic solutions. Materials: 10 potato cubes (1 cm3) -Pipet Baking soda solution -50 ml glass beaker Bleach Water Lemon juice Vinegar 5 glass test tubes Drying rack Timer Graduated cylinder Hydrogen peroxide Procedure:
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Ginkgo biloba affects the cardiovascular system and the central nervous system. Elasticity of the blood vessels‚ from the largest arteries to the smallest capillaries‚ improves the circulation in the limbs and brain. Similarly‚ acetylsalicylic acid acts by reducing blood viscosity and by reducing the risk of blood clots. It also has antioxidant properties. It removes free radicals and protects healthy blood cells. Some researchers claim that it supports the nervous system. increasing the supply of
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1) How does fatigue affect Labour Productivity? Fatigue affects labour productivity by impairing the ability of a worker to carry out his/her required duties as expected and in a safe manner. With increase in fatigue comes a reduction in muscular strength‚ attention to details and loss of concentration. A worker or employee who is gradually losing strength‚ losing concentration and not giving attention to details is usually more prone to mistakes and would not be able to work at his/her optimum
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On average Americans consume 75 pounds of sugar in one year. John Oliver jokely said that’s roughly like “ eating Michael Cera’s weight in sugar every year.” Throughout his jokes comes the shocking truth of how it’s affecting our country. His 10 minute segment on Last Week Tonight about sugar brought forth the truth that is hidden from millions of Americans each day. I hope that everyone knows that having too much sugar is not healthy for anyone. Yet‚ two thirds of Americans are considered overweight
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Why is it that as time passes acts of violence with teenagers and sometimes even younger kids increase within schools and outside of schools? In the past few years‚ statistics have shown that violence has increased drastically. What changes have occurred to make this happen? One factor could be technology. Almost everywhere one looks kids are holding some type of technology. Along with that a lot of information is readily available to them such as violence. Children from an early age are exposed
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Women and Slavery There are many misconceptions about how slavery affected women. Slavery was different for women residing in the North and South and both slave and free women had unique experiences based on their location. Female slaves had some of the longest work days‚ as their work was never done‚ and faced challenging circumstances that male slaves would never encounter. Inversely‚ female slave owners also had varied experiences and diverse relationships with those in their property. All
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