7. The correct chemical symbol for magnesium is Mg mg MG mG 8. The smallest part of an element is called A mixture A molecule An atom An ion 9. When two elements combine, the name of the compound will usually end in -ate -ide -ite -ium 10. An element is a substance that Can be split up by physical methods Can be split up into simpler parts by a chemical reaction Is made up of different kinds of atom Is made up of only one kind of atom

How to solve 4 nh3(g) + 5 o2(g) > 4 no(g) + 6 h2o(g) in chemistry

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Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.