Question 28 Which of these is the correct name for MgCl2? O Magnesium chloride O Magnesium chlorine O Magnesium dichloride O Magnesium monochloride O Monomagnesium monochloride Question 29 How many grams of carbon dioxide are produced when 18.5 moles of oxygen react with excess acetylene according to the given equation? 2 C2H2 + 5 O2(g)→4 CO2 +2 H2O O 2,030 grams O 814 grams O 651.2 grams O 88.0 grams O 37.0 grams

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.