Chapter 7 Assignment Item 5 Proportional reasoning is the ability to understand

Question

Chapter 7 Assignment Item 5 Proportional reasoning is the ability to understand and compare ratios It can be used for solving many problemm in t Constants Psrledi Tas r Chemistry M's aso an excellent way to check answers and detemine f they make sonod General Propartional reasoning is You are asked to bake muffins for a breakfest isinctively witout realizing Consider the following example meeting Your original recipe caled for thhee eggs Just as you are about to start making them, you get a cal saying that ne you may do number of people coming to the mesting ha doubled! You decide to make double the number of mutina ANSWER 6eggs It should make sense that if you need heice as many mufins, then you/d need twice as Witing (uumber of muffins) ox (number of eggi) indicatos many eggs to make eggs For example,to triple the number of mufins you meed to viple the nunmber af eggs them The number of eggs i linearly proportional'ts the numbor of muffins that i the number of eggs needed increases, then the mamber of mufins mads increases as well and that both of these nunbers increase by the same ratio. This means that the number of muffins is inearly proportional to the number of this is true of a reduction as well""ne number of o available decreases, he runt er of mas you can (0f course this is a single analogy Al or the otw inredents would red to be adusted accordingly) make decreases as we Thus if you use 25% les s eggs you w yed 2S%less mas - Part A A student mesds to conduct a reaction that combines chericals A and B to syhesie product AB we wile io as a chemical equationlooks ATB AR this student contines tto moteeles of A and "04 molecades at 13 sadeitttalastt mintes of AB How many moece of A would this sturdent need to make 5000s of A stuent had enough of molecule B to make 5000 moleces of AB Express your answer es an integer View Avaltabte Hints) 752018 Type here to search

Explanation / Answer

        A + B----------------------------> AB

THIS REACTION CLEARLY SAYS THAT

1 MOLECULE OF AB IS OBTAINED    ------------------ 1 MOLECULE OF A ON REACTION WITH B

5000 MOLECULE OF AB IS OBTAINED-----------------------?MOLECULE OF A ON REACTION WITH B

                                = 5000*1/1

                                     = 5000 MOLECULES OF A

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