and hydrochloric acid solution Place one scoop of magnesium turnings into the test tube. Add hydrochloric acid slowly and observe the reaction. Next‚ place a burning splint near the mouth of the test tube to test for the presence of hydrogen gas. We notice one of the products is lead iodide which is insoluble so it precipitates out and indeed its colour is yellow. 3) Mg + 2 HCl = MgCl2 + H2 3. Electrolysis of water Use a U-tube with electrodes at each end‚ connected to a battery. Fill
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To get money should be the reason for why do people. We work in exchange to earn money‚ which is the factor to acquire what we need in daily lives. Although people have a right to choose whether they want to live either with sufficiency economy or extravagant economy‚ they do have to work hard in a different way. For those whose lives lie on the philosophy of sufficiency economy‚ they will have to work to survive even though they do not need money. People need to buy food‚ clothes and other necessarily
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react 52.9 g of potassium chlorate (KClO3) with excess phosphorus‚ what mass of tetraphosphorus decoxide (P4O10) would be produced. KClO3 (s) + P4 (s) → P4O10 (s) + KCl (s) Answer: 36.8 g P4O10 Stoichiometry • In the real world‚ reactions do not always have 100% efficiency. • Often‚ use an excess of one of the reactants (usually the cheaper one). • Limiting Reactant – reactant that will be totally consumed. • Excess Reactant – will not be totally consumed; will have left over. •
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CELL STRUCTURE CELL THEORY: Structural and functional unit of all living things New cells arise from already existing cells Cells contain information that instructs growth. This information can be passed onto new cells. MICROSCOPES: There are two main types of microscopes: Light and Electron Electron Micrographs- shown in colour LIGHT ELECTRON Uses beam of light Magnification = x1500 Resolution = 200 nm Wide range of specimens can be used Samples are fairly quick + easy to prepare
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Cow Facts and Information Cows‚ what a marvelous animal‚ that nobody really knows much about‚ other than the fact we use them as a main food source‚ but that is not all we use them for‚ in fact we use them for many different things‚ Cow fact one: did you know in America alone has about 100 million cows. Most of which are used for meat and dairy production. The process in which cows used for meat production are: feeding them until they are market weight‚ send them to a boucher‚ like John Morells
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Previously‚ many people think that school lunches have the correct amount of nutrients and vitamins but more importantly‚ does it. Numerous of studies have concluded that school lunches can lead up to obesity and high blood pressure. Within this problem‚ many of the school lunches don’t include vegetables or fruits in their trays. A study made by the Johns Hopkins Bloomberg School of Public Health concluded that 6 out of 10 students touched the lunch tray while the other 4 either took a bite out
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The presentation should be engaging for the audience (you can direct it to a specific audience or your general community)‚ and should summarize all of the important research and findings. The presentation should include: detailed explanation of how smoke detectors and carbon monoxide detectors work and suggestions for use (number‚ mounting locations‚ etc.) specific explanations of how different fire extinguishers (at least three types) work‚ advantages and disadvantages of each type‚ and effectiveness
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own insights as to why they are living and will continue to live. No human being will allow death upon them without a fight and will strive to survive. Humans are some of the most intelligent animals on earth. All humans breathe‚ an essential part of living. If humans were not designed to always strive for survival‚ no human would be breathing. We are capable of many great things‚ preventing us from giving up our lives‚ no matter what the circumstance. If you think about how we got here‚ at this
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brain in their book‚ Do Zombies Dream of Undead Sheep? They explain how different parts of the brain works in a human and‚ based off of common characteristics of zombies‚ how a zombie can exist based on this. They find and publish information such as the relation between different diseases and mental disorders and the characteristics of a zombie. For example‚ the hypothalamus in our brain controls how hungry we feel. Hypothalamus Disease is a disease where we cannot tell if we are hungry or full.
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that the idea of alien life is incorrect. Some take the concept of believing overboard‚ and others try to justify their disbelief by stating that most who believe are conspiracy theorists. Are aliens real‚ though? Since the universe is so expansive‚ why wouldn’t they exist? 6EQUJ5‚ also known as the Wow! signal‚ could have potentially come from extraterrestrial life force attempting to contact us. On August 15‚ 1977‚ at 11:16 PM‚ an Ohio radio telescope detected a single pulse of radiation coming
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