that allows it to complete its job. Enzymes are recyclable‚ and they have to do their job very efficiently‚ and if their shape is altered‚ this is no longer possible. The reactants of an enzymatic reaction are the enzyme itself‚ and the substrates. Together these reactants bond at their activation site‚ the edges of the two reactants that are complementary to each other‚ so that only those specific substrates can bond to that enzyme‚ like a lock and key. This critical relationship is known as the enzyme-substrate
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increases when there are more collisions or when the activation energy is reduced. We then determined that there were four ways to increase the reaction rate: increase temperature‚ add a catalyst‚ increase surface area‚ and increase the concentration of reactants. The objective of this lab was to experimentally show how temperature and surface area impact the rate of reaction‚ so only two of these methods were tested. The evidence indicates that increasing surface area increases the reaction rate‚ and increasing
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considered an endergonic reaction? 2) _______ A) Activation energy is not required. B) Photosynthesis does not comply with the physical laws of the universe. C) Sugar has less energy than the sun. D) Protein catalysts are not needed. E) Low-energy reactants are converted to high-energy products. 3) Activation energy is necessary for all ________ reactions. 3) _______ A) exergonic B) endergonic C) coupled D) chemical 4) An ________ chemical reaction releases energy‚ whereas an ________ reaction requires
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Introduction: Chemical equilibrium is when the concentrations of the reactants and products have reached a state where reactions occurring in one direction are at the same rate of reactions occurring in the opposite direction. This process‚ called dynamic equilibrium‚ is the main subject of Le Chatelier’s Principle. Le Chatelier pointed out that if a system at equilibrium is subjected to a stress that momentarily causes the system to be not in equilibrium‚ a spontaneous change will occur to
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answer completely in paragraph form. There was a pattern on while the reactants were decreasing the products were increasing‚ showing that the reaction is two-way. This showed that two occurrences were going on and illustrated that two reactions can happen at the same time. This was a real hands on lab for me allowing me to see and experience the meaning of equilibrium. 3. How did the calculated ratios of product to reactant compare in the three parts of this activity. Explain‚ in paragraph form
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Chemistry Module Six: Thermochemistry and rate Study sheet for the test G.01: Thermo-chemistry I. Temperature and Thermal Energy Temperature is a measure of the average kinetic energy of the particles in a sample of matter. The greater the avg. kinetic energy of the particles in a sample of matter‚ the higher the temperature of that matter. Some temperature scales are Fahrenheit‚ Celsius and Kelvin. Thermal energy is the measure of the total kinetic energy in a sample. And Temperature
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equilibrium position is just the specific equilibrium concentrations (or pressures). A shift in the equilibrium position to the right means that there is the net reaction to the right (reactant to product) until equilibrium is reaatained; a shift to the left means that there is a net reaction to the left (product to reactant). Thus‚ when the disturbance occurs‚ we say
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By doing this‚ the number that is left should be approximately the same mass as when the experiment began. Data Tables and Analysis: Mass of Reactants Table Material Mass (g) Flask 93.20 Tablet 3.22 Balloon 2.98 50mL of water 47.59 3.22g (Tablet) + 47.59g (50mL of water) 50.81g (Mass of reactant) Mass of Products Table Material Mass (g) Flask with Balloon and chemical reaction 146.62 146.62g (Flask with balloon and chemical reaction) - 2.98g (Balloon)
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substances (reactants) are converted to one or more different products because of the rearrangement of atoms of the reactants. For the reaction to occur‚ the particles must collide with each other and in order to succeed there must be enough energy for the collision because a collision with little energy will not produce a reaction. There are four main factors that could affect the rate of reaction these include the concentration of the reactant‚ the temperature‚ the surface area of solid reactant‚ and
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| A system is at equilibrium when the rate of the forward reaction is equal to the rate of the reverse reactions. | BECAUSE | At equilibrium‚ the concentration of the products is equal to that of the reactants. | | | 5. | Which of the following statements best describes the condition(s) needed for a successful formation of a product in a chemical reaction? | | (A) | The collision must involve a sufficient amount of energy‚ provided from the
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