solutions of lead (II) chloride and sodium chromate react to yield solid lead (II) chromate and aqueous sodium chloride. 3. Write the chemical equations for the following reactions. a. When heated‚ solid calcium reacts with solid sulfur to produce solid calcium sulfide. Δ Ca (s) + S (s) → CaS (s) b. Hydrogen gas reacts with fluorine gas to produce hydrogen fluoride gas. H2 (g) + F2 (g) → 2 HF(g) c. Solid aluminum metal reacts with aqueous
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simply listing the number of protons‚ neutrons‚ and electrons - for example‚ 2P+; 2n0; 2e- for helium. Which atom represents the 18O isotope of oxygen? Answer - b - 8p+; 10n0; 8e- 5) The atomic umber of sulfur is 16. Sulfur combines with hydrogen sulfide. Based on the electron configuration of sulfur‚ we can predict that the molecular formula of the compound will be Answer - c - H2S. 6)
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your planet?ˉs full)‚ and celestite (strontium mineral 50% of globe output) 2nd in fluorspar (14% of world output) 4th in arsenic and graphite fifth in molybdenum 1 with the leading ten in barite‚ cadmium‚ gypsum‚ mine direct‚ manganese ore‚ salt‚ sulfur‚ and mine zinc as well as inside the very best 15 in mine copper‚ cement‚ gold‚ and crude metal (secondlargest producer in Latin The usa). India’s 4th‚ fifth‚ and sixth foremost industries in 2002 were generating iron and steel‚ oil‚ and mining‚ correspondingly
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International Conference on Mechanical‚ Industrial and Energy Engineering 2012 01-02 February‚ 2013‚ Khulna‚ BANGLADESH MIE12-046 LPG as auto fuel for diesel engine prospect in Bangladesh and relevant financial‚ environmental analysis 1 Amit Barua 1‚ Dabajit Paul 2‚ Bashu Kumar Das3 Student (M.Engg)‚ Department of Industrial & Production Engineering‚ BUET‚ Dhaka-1000‚ BANGLADESH 2 Service Advisor‚ Rangs Workshop Ltd.‚ Dhaka-1208‚ BANGLADESH 3Assitant Project Engineer‚ Doreen Developments
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(Christoforou‚ 2004) The health hazards that are a result of air pollution have become more common to our elderly and young children. Lung disease‚ asthma‚ chest pain or even death‚ are the results of our careless activities. In the 1930s in Belgium‚ SO2‚(sulfur dioxide)‚ and particulate matter combined with high relative humidity and caused 65 deaths in less than 5 days (Christoforou‚ 2004). The emissions from our vehicles
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THE CLASSIFICATION OF CHEMICAL REACTIONS Danny Bhatt SCH3U0-G Mr. Gandhi Wednesday‚ April 1st‚ 2014 INTRODUCTION The purpose of this lab is to determine the different types of chemical reactions and differentiate between them based on similar characteristics of each set category. In this lab it is hypothesized that every chemical reaction which was observed would fall under already set categories (that are: synthesis‚ decomposition‚ single displacement‚ double displacement‚ combustion and
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however in fact over the years the sulfurous coal which many plants use now causes way more pollution than coal used in the past. Most coal contains significant amounts of sulfur. After burning‚ this changes to sulfur dioxide and then eventually into sulfuric acid. If it is still not removed past a certain stage‚ burned sulfur is one of the main causes of acid rain (geocities/online). Another disadvantage of using coal as a source of energy is it produces very large quantities of ash that has to
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the Hull Steel that the Titanic used and the metal broke when applied enough force as opposed to materials nowadays that are more ductile and deform instead so they can bend without breaking. Another problem was the high sulfur content which increases the brittleness and the sulfur combines with magnesium to form magnesium sulfide which creates crack propagation. The Rivets were used to fasten the hull plates to the Titanic’s main structure to act as an outer boundary to the ship and was made of
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HOW POLLUTION DESTROYS THE ATMOSPHERE AND HABITATS Introduction “Nowadays‚ industries‚ automobiles‚ power stations‚ etc. have become indispensable in our daily life.” ( Science Level K page 242) Have you ever wondered what causes pollution? Forms of Pollution Pollution is the process whereby various harmful substances are added to the environment (land‚ water‚ air etc.) by human and natural activities. The main various types of pollution that exist are: Air Pollution Air pollution is
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Biography Do you ever wonder who named elements? Do you ever think about who helped make the metric system?The answer is simple. A man by the name of Antoine Lavoisier named a couple of elements‚ he even discovered an element. He also worked with the french government for the metric system. Antoine Lavoisier was a young man from Paris‚ France. He was born on August 26‚ 1743. His father was a lawyer by the name of Jean Antoine Lavoisier. Jean married the daughter from a rich family in Paris
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