Cognitive Properties Ashley Weber Principles of Chemistry 2 Experiment 1 02/02/2015 Abstract: Several experiments were performed to observe the colligative properties. This includes the freezing point depression‚ and osmotic pressure. Two ice baths were made‚ one with pure water‚ the other with salt water. The lowest temperature was then record for each bath and compared. The salt water had a lower freezing point than the pure water by 2 degrees which supports the hypothesis that solutions have
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Heather Schnicker 26 October 2012 Experiment # 4 (Lab 3) Properties of Gases PURPOSE The purpose of this experiment was to investigate and identify the chemical properties of the gases tested. DATA Gas | FLAME REACTION | GLOWING SPLINT | LIMEWATER REACTION | BROMOTHYMOL BLUE REACTION | Hydrogen | NO REACTION | | | | Oxygen | | BURNED BRIGHTER | | | Hydrogen & Oxygen | QUICK FLAME BURST | | | | Carbon Dioxide | | PUT THE FIRE OUT | NO REACTION | TURNED
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The purpose of this experiment is to discover the physical and chemical properties of the studied gases. In discovering these properties it allows the student or observer the ability to identify these gases when they come into contact with them. Procedure Before I began the procedure I gathered all my supplies from the given list in the manual. From there I began the actual experiment and diluted the HCL placed in a test tube and then placed the ZN in the tube as well. I placed the stopper
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Soil properties Soil depth Soil texture Structure Colour Soil pH level Nutrients Dispersibility Soil organic matter and soil carbon sequestration Permeability and porosity Water holding capacity Soils vary in their suitability for specific purposes. For example‚ in Queensland a deep‚ fertile clay soil is suitable for intensive agriculture but a shallow‚ sandy soil is better suited to grazing and growing native trees. The suitability of a soil for a particular purpose can often be
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Old Earth vs. New Earth Many Christian scholars are open to the belief in an old earth. One of these scholars is Colin Humphreys who believes that radioactive dating methods aren’t as accurate as most people think but they can still prove that we have a very old earth. Greg Koukl‚ is another Christian apologist‚ speaker‚ philosopher‚ and author who believes that the answer to the old earth/new earth lies in the heavens. The stars show light that takes millions of years to get to us. He argues that
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divided the world up between them. Zeus took the sky‚ Poseidon took the sea‚ and Hades ruled under the earth‚ the home of the dead. At first‚ it was great fun. But things had been just a bit slow lately. Zeus‚ Poseidon‚ and Hades were the three sons of Cronos. When Cronos retired‚ the boys divided the world up between them. Zeus took the sky‚ Poseidon took the sea‚ and Hades ruled under the earth‚ the home of the dead. At first‚ it was great fun. But things had been just a bit slow lately.Zeus‚ Poseidon
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Origin of Earth and Evoluation of the Environment MODULE - 1 Environment through Ages 1 ORIGIN OF EARTH AND EVOLUTION OF THE ENVIRONMENT We live on a beautiful planet called earth‚ along with a wide variety of plants‚ animals and other organisms. Our earth‚ however‚ is part of a vast universe. The universe is about 15 to 20 billion years old. The age of the earth is approximately 4 to 5 billion years‚ while human beings evolved only around 2 million years ago. In this lesson‚ you shall learn
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events in each era. Did more Earth-shaping events occur early in Earth’s history or later on? Explain why. Based on my geologic time scale‚ there are three events in Precambrian Time‚ two events in Paleozoic Era‚ four events in Mesozoic Era and one event in Cenozoic Era. These events mostly occurred later on in Earth’s history. Mesozoic Era has the most events which are four out of ten events on the list‚ mean that Earth-shaping events happened more recently. Earth-shaping events occur later on
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The Origin of the Earth‚ One of God’s Hidden Secrets “Much of geology is pure speculation and is as such on the same basis as philosophy‚ or must be accepted on faith‚ as the truths of theology” (Rehwinkel 177). For geologists this means that any theory of how the Earth‚ atmosphere and life originated‚ takes faith to believe‚ whether it is the evolutionist’s view or the creationist’s view. Creationists believe that the Earth was created 6000-7000 years ago. This number is based on what the Bible
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2006; Cushnie et al.‚ 2005). As a consequence‚ natural antimicrobials are receiving a good deal of attention for a number of micro-organism-control issues. Reducing the need for antibiotics‚ controlling microbial contamination in food‚ improving shelf-life extension technologies to eliminate undesirable pathogens and delay microbial spoilage‚ decreasing the development of antibiotic resistance by pathogenic microorganisms or strengthening immune cells in humans are some of the benefits(Abou-taleb et
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