Rate of Decomposition of Calcium Carbonate Theory Calcium carbonate‚ CaCO3‚is one of the most abundant minerals on the Earth. More than 4% of the Earth’s crust is composed of calcium carbonate. It is a major component in limestone‚ marble‚ seashells‚ bedrock‚ etc. Limestone and marble have been among the most widely used building materials for more than 5 000 years‚ from the pyramids in Egypt to the Parthenon in Greece and the Taj Mahal in India. In many places‚ limestone is also the foundation
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Grass Decomposition Lab Problem: How do temperature‚ sunlight‚ amount of moisture‚ and presence of oxygen affect the decomposition of grass? Controlled Variable: Amount of grass and water in each container. Independent Variable: temperature‚ sunlight‚ amount of moisture‚ presence of oxygen. Dependent Variable: decomposition rate of grass. Hypothesis: I believe that there will be the most decomposition in high temperatures‚ low sunlight‚ low amount of moisture‚ and high presense
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Decomposition of Sodium Chlorate Mass‚ Moles‚ and the Chemical Equation Introduction: Sodium chlorate is used as a source of oxygen in emergency oxygen generators. So-called oxygen canisters or oxygen candles are found on airplanes‚ submarines‚ even the space station–anywhere where oxygen might be in short supply in case of an emergency. Sodium chlorate decomposes upon heating or in the presence of metals to give oxygen gas. What the chemical equation for the decomposition of sodium chlorate
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Chemistry Catalyst Report Aim I am trying to investigate the effect of the mass of magnesium dioxide used on the speed of the reaction of 2H2O2(aq) 2H2O(l) + O2(g). I hypothesize that the speed of the reaction is proportional to the rate of decomposition. Independent Variable The mass of MnO2 used Dependent Variable The rate of decomposition through the amount of mass lost Controlled Variables Environment of the experiment Stay in the same place to carry out the experiment and finish the
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Patrick McCrystal Enzymes: Natural Catalysts Enzymes are catalytic proteins‚ meaning they speed up chemical reactions without beingused up or altered permanently in the process. Although various enzymes use different methods‚all accomplish catalysis by lowering the activation energy for the reaction‚ thus allowing it tooccur more easily. Enzymes have very specific shapes (conformations). Part of the conformationis the active site of the enzyme‚ where the actual catalysis occurs. The specific molecule
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The Catalyst of My Life There’s always an agent for every renewal. The agent is the one responsible for the magnificent effect that causes a great impact into our lives. In my life there are so many dilemmas that I have encountered and I conquered all of those dilemmas because of the catalysts whom I considered as the hero to my life who always there for me in good times and in bad times. Of course I considered the Almighty God as my infinite hero but aside from God‚ without her I think my life
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species the rate of decomposition varies according to leaf structure‚ chemical or physical defence and whether the species is allochthonous or autochthonous. Native species adapt to the predators that feed upon them and the same applies for the predators‚ adapting to the plants defences. Allochthonous species have not evolved with the native predators in its introduced environment. In some cases this can result in the plant being more susceptible to predation. The aim of this experiment was to investigate
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The Catalyst to the Korean War It is often thought of‚ as the “Forgotten War”‚ the Korean War took place between the years 1950-1953. Korea was a frequently fought-over peninsula in the late 19th century and early 20th century. Korea was dominated by China as a tributary nation for centuries‚ fought over by China and Japan in the first Sino-Japanese War (1894-1895) and fought over again by Japan and Russia in the Russo-Japanese War (1904-1905)‚ both wanting it for colonization. It was annexed
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A phase transfer catalyst or PTC in chemistry is a catalyst which facilitates the migration of a reactant in a heterogeneous system from one phase into another phase where reaction can take place. Ionic reactants are often soluble in an aqueous phase but insoluble in an organic phase unless the phase transfer catalyst is present. Phase transfer catalysis (also PTC) refers to the acceleration of the reaction by the phase transfer catalyst. Phase transfer catalysts for anion reactants are often
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Oratorical Piece Theme: “Students as Catalysts for Peace” Friends‚ let me begin by quoting you a line lifted from Eleanor Roosevelt. “It isn’t enough to talk about peace. One must believe in it. And it isn’t enough to believe in it. One must work at it.” This ladies and gentlemen challenges Juan De la Cruz‚ the majority common Filipino people. And what is more moiling to this are the sweet and sour additives and influences of the society. My friends‚ as we all know Philippines is somehow ignorant
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