Investigating the Effect of Concentration on the Rate of Enzyme Catalysed Reaction To investigate the effect of concentration on the rate of enzyme catalysed reaction I must know all the factors that affect it in order to investigate in this. Here are all the factors: Temperature- Enzyme like it warm but not too hot. Enzymes are biological catalysts‚ which speed up chemical reactions. They work most efficiently at the optimum point (37°C). If they are below 37°C they will work
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Thermal Runaway Reactions Plan Hypothesis: In this experiment‚ my hypothesis is that‚ the more concentrated acid there is‚ the bigger the temperature change in the experiment. This is because there are more acid particles to collide & react with each other. Equipment: * Beaker (100cm3) * Assorted measuring cylinders * Stopwatch * Thermometer * 0.1g of magnesium powder * 10cm3 of sulphuric acid Method: First‚ I will measure the correct amount of magnesium I need‚
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Mealworms and Caffeine Caffeine is the most commonly used stimulant in the United States. In North America‚ sixty to seventy five percent of caffeine consumption comes from coffee and fifteen percent to thirty percent comes from tea. It can be found in a variety of forms including: coffee‚ tea‚ chocolate‚ soft drinks. Caffeine is a part of a family of drugs known as methylxanthines.To work‚ caffeine disrupts the neurotransmitter adenosine. Caffeine is known to cause physical dependence in humans
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Metals and Halogens reactions Elements such as fluorine‚ chlorine‚ bromine‚ iodine‚ and astatine belong to Group 7‚ Halogens. At room temperature‚ fluorine is a yellow gas‚ chlorine is a pale green gas‚ bromine is a red liquid‚ and iodine is a purple solid. Astatine is a radioactive element‚ therefore it exists only in small amounts. All the halogens exist in diatomic molecules. They have high ionization energies and are the most electronegative elements. Their electron configuration ns2 np5 make
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the two texts are more or less about the same subject‚ the way they approach their audience is very different. First of all‚ Text 1 aims more generally at older and historical-interested people‚ but also at those who would be interested in King George VI or the actors involved. Where text 2 was broadcasted all over Britain‚ to reach the whole of the British Empire‚ soldiers and families. However‚ their difference in audience‚ the one thing they do have in common is that both text 1 and 2 are trying
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puck of mass m initially at speed u collides head-on (without rotation) with a stationary puck of mass M. Find the velocities of both puck after the collision if: i) the collision is fully elastic ii) the collision if fully inelastic. i) momentum: kinetic energy: mu = mv+MV (+ve in direction of initial u) 1 /2 m u2 = 1/2 m v2 + 1/2 M V2 2 eqns in 2 unknowns: V = (u - v) m/M substitute in K eqn: u2 = v2 + (M/m) V2 = v2 + (M/m) (u - v)2 (m/M)2 = v2 + (u - v)2 (m/M) let ρ = (m/M) ⇒ v2 (1 + ρ) - 2ρ
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The genetic code A DNA (deoxyribonucleic acid) is composed of 4 different bases; adenine (A)‚ guanine (G)‚ cytosine (C) and thymine (T). Applying these 4 bases it may contain thousands of sequences within a single strand. Each of these bases makes a specific pairing with a corresponding base whereby the double helix structure is synthesised. This interaction is called base-paring and the complementary base pairs are; T pairs only with A and C only with G. Through this simple coding language‚ the
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CSVI Competency Statement VI To maintain a commitment to professionalism by conducting myself in a professional manner at all times. Every day I get to be part of all my students and their families lives and I hope to influence them with positive attitude‚ great energy and provide them with knowledge that they can use as building blocks for their future education .I have an understanding of my job expectations and every day I make decisions based on knowledge about age appropriate early
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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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LABORATORY 3: LABORATORY 3: Basic Chemistry for Investigating Living Systems Abstract The purpose of this experiment was to explain how colorimetry can be used to qualitatively detect cellular chemical components; to chemically differentiate between proteins‚ sugars‚ starches‚ and lipids; to identify the roles of molecular components in living systems; to comprehend the value of using a systematic approach to research; and to describe why hypotheses‚ controls‚ standards‚ and quality control
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