The metals we chose were iron‚ copper‚ lead‚ zinc‚ and aluminum. Those are some of the most commonly used industrial metals. We got the salt water directly from the beach‚ so that we would get the same reaction if this happened in real life. The chemicals that are
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- He was Swedish and gave the technique of chemical formula notations. He also proposed the law of constant proportions‚ which proved that inorganic substances are made of elements that are in constant proportion by weight. Marie Curie (1867 - 1934) - She was a Polish born chemist and physicist who later acquired French citizenship. She is renowned for her discoveries in the phenomenon of radioactivity. Marie Curie discovered the radioactive elements radium and polonium for which she was awarded
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particles made of atoms. The atomic theory first had 5 points which were stated by John Dalton who came up with it. The first one was that all elements were made up of small units called atoms. The second one was that all atoms of a given element are identical to each other. Third‚ all the atoms were different from all the other atoms. Fourth‚ atoms of different elements combined together in equal numbers to form compounds. Fifth and final‚ atoms cannot be broken down‚ created or divided. John Dalton was
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table. 9. Titanium is a silver‚ lustre‚ low in density but is a strong metal. This metal forms a passive but protective oxide coating when exposed to elevated temperatures in air but at room temperatures it resists tarnishing. The most noted chemical property of Titanium is its excellent resistant to corrosion. 48 Ti in standard atomic notation. 22 10. Titanium is almost always present in igneous rocks and in the sediments derived from them. It is found in certain/some areas in the
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Sihle Student Number: 209504496 Date of Practical: 11 April 2013 Inductively Coupled Plasma – Atomic Emission Spectroscopy Aim The aim of this practical was to use an ICP-OES to perform a multi-elemental analysis of different types of tea. The elements that were analysed in the tea were copper‚ iron‚ manganese and magnesium. The sample is introduced into the plasma as an aerosol. Argon gas flows through three concentric quartz tubes in the plasma torch. This argon gas transports the sample
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The element I chose for this paper was Tin. Tin got its name because it is Anglo-Saxon‚ and the atomic symbol get its name from the Latin root Stannum. https://education.jlab.org/itselemental/ele050.html. What does Tin mean? Tin belongs to the carbon family https://www.britannica.com/science/tin. Tin consists of 50 Protons‚ 69 Neutrons and 50 electrons. (my citation for where i got this information is the periodic table you gave to us.) The atomic number of tin is 50 because the atomic number is
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Nalley Tungsten Paper Tungsten Tungsten is a gray-white metallic element that is stable and is very resistant to acids and bases. It does‚ however‚ oxidize in air‚ especially at higher temperatures Tungsten was discovered by Juan José and Fausto Elhuyar‚ Spanish chemists and brothers‚ in 1783 in samples of the mineral wolframite ((Fe‚ Mn)WO4). Tungsten was named from the Swedish words "tung sten" meaning "heavy stone." Tungsten ’s chemical symbol comes from its eariler‚ Germanic name‚ Wolfram. The name
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which out of the four balanced chemical equations best represent the thermal decomposition of sodium bicarbonate. The guiding question will be answered with the outcome of the sodium bicarbonates thermal decomposition and it being plugged in into the four balanced chemical equations. John Dalton atomic theory explains two fundamental laws of chemistry which are the law of conservation of mass and the law of definite proportions. The atomic theory states that a chemical reaction is simply a rearrangement
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paint used on toy cars‚ and secondly to determine what other elements‚ and in which quantities‚ were present. Two different digestion methods were followed‚ and both confirmed the presence of Ba and Fe‚ although the concentrations obtained by each method differed: higher values m/m% was obtained for all samples digested by HCl than for samples digested by acetic acid. INTRODUCTION Trace amounts of many natural occurring chemical elements such as sodium‚ magnesium and iron are needed for the proper
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electronic device there is‚ and as time progresses the usage of it increases‚ unfortunately the amount there is left decreases. How is it created or source of the mineral? (5) Silver is not originated from Earth‚ as it happens it came from space. Many elements were formed in the big bang‚ but unlike them it takes more than the big bang to create silver. Silver is formed in supernova explosions along with gold. It is created through a process called weaker r process‚ which is a type of nuclear fusion. Silver
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