ࡱ>  Root Entry( JrOd@MatOST dOdMMMN0 ND &FMicrosoft ClipArt GalleryMS_ClipArt_GalleryMS_ClipArt_Gallery9q0 *EPS400EPSON Stylus COLOR 400LPT1: (All Categories)C:\Program Files\MSWorks\Clipart\science.pcs}"8C.}}"MatadorObject2&FddCompObjxOlePres000TOlePres001q ^\  & & &$TNPPMicrosoft PowerPoint & TNPPP & &TNPP  =@@@@@45&l&l&vU@@@--\$VU-UNVu[ahpyy]s?pmmpqvr|YB-&@Yvmhej6Vtwy~1Jcx !7LychtS; |U2  )KpwncVH>1"vV5{jWE ;52L-_@iXspy  wU/ zhUE{5x&vy %w?n\g~_Y & &l&lB&*B&*B&{ - ${ _ & &|1@@@-2| &  & &$7&Ps@@@--% V\bfh k%h@eXbp\P & &--@@@-du;--' &  &  & &l&-$>+9IYj -@P ^jt{j%{tog]|_^\SMIzAj8U-C07Ok & &l&N@-- 0+N & &n nm & &BlN Rkr &  &  &  & &5$&5$&I$&_I--$`"IrI{_ & &@-B$! '@R_n}'{1r7e=VAAE+G GEB>8. &  & &}2$t} &?P_n{}qz]aR@*^ &  & &Wz&LT----@-LL--' & &----A@---' &  &  &  &  & &{&V-R$'WVAY[^ad+gp{rL%7Pmm#V<=^!D| & &{&M- $VM & &L-L &  &  &  & &TNPP & --'Ole10NativeCompObjU7 PS%(All Categories),C:\Program Files\MSWorks\Clipart\science.pcs ( JrMicrosoft Works MSWorksWPDoc9q , t T SMores An introduction to chemical equations, stoichiometry, and limiting reagents!!!  Purpose: 1. To gain an understanding of reactants and products in a chemical reaction. 2. To perform calculations similar to those that will be done in stoichiometry. 3. To describe what a limiting reagent is and what it does in a chemical reaction. Materials: Your teacher will provide an amount of graham crackers, chocolate bars, and marshmallows to be used to make as many smores as possible. bunsen burner paper towels roasting tool Procedure: Step 1 Weigh one of each of the reactants and record the mass to the nearest 0.01 gram. Record these masses neatly in your lab notebook. Step 2 Record the following symbols to be used for each reactant with the above data. M = marshmallow G2 = graham cracker (whole, not broken in half yet.) Cs = chocolate square (broken into the pieces that you wish to use on each smore.) Step 3 Perform a mechanical synthesis reaction with the resulting product taking the form that you and your partner agree on. Write out a balanced equation for this synthesis reaction in your lab notebook. Step 4 Cause this reaction to go to completion by making as many of the product as you possibly can. Mass and record one of the representative products. Step 5 Count and record how many products you were able to perform. Step 6 What caused your reaction to stop? Record. Step 7 The material responsible for your reaction reaching completion is called a limiting reactant. Define, in your own words, what a limiting reactant is. Step 8 What, if anything, did you have leftover? What is the total mass of each left over reactant? Record. Step 9 Answer the following questions in your lab notebook by comparing the masses involved in your reaction with the information supplied below. Question #1. How many smores could you make if you had started with 100.0 grams of each reactant? Question #2.  ]^AGDE{uok{g{b{g{b{\{g{(   $uST   , , , =/9d , t T SMores An introduction to chemical equations, stoichiometry, and limiting reagents!!!  Purpose: 1. To gain an understanding of reactants and products in a chemical reaction. 2. To perform calculations similar to those that will be done in stoichiometry. 3. To describe what a limiting reagent is and what it does in a chemical reaction. Materials: Your teacher will provide an amount of graham crackers, chocolate bars, and marshmallows to be used to make as many smores as possible. bunsen burner paper towels roasting tool Procedure: Step 1 Weigh one of each of the reactants and record the mass to the nearest 0.01 gram. Record these masses neatly in your lab notebook. Step 2 Record the following symbols to be used for each reactant with the above data. M = marshmallow G2 = graham cracker (whole, not broken in half yet.) Cs = chocolate square (broken into the pieces that you wish to use on each smore.) Step 3 Perform a mechanical synthesis reaction with the resulting product taking the form that you and your partner agree on. Write out a balanced equation for this synthesis reaction in your lab notebook. Step 4 Cause this reaction to go to completion by making as many of the product as you possibly can. Mass and record one of the representative products. Step 5 Count and record how many products you were able to perform. Step 6 What caused your reaction to stop? Record. Step 7 The material responsible for your reaction reaching completion is called a limiting reactant. Define, in your own words, what a limiting reactant is. Step 8 What, if anything, did you have leftover? What is the total mass of each left over reactant? Record. Step 9 Answer the following questions in your lab notebook by comparing the masses involved in your reaction with the information supplied below. Question #1. How many smores could you make if you had started with 100.0 grams of each reactant? Question #2. What is the limiting reactant in the situation in question #1? Question #3. How much of each excess reactant will be left over? actants and products in a chemical reaction. 2. To perform calculations similar to those that will be done in sto ]^AGDE{uok{g{b{g{b{\{g{(   $Zc"(QWci;Aw{wrwrw{wrw{wrw{wrw{wrw( w {wrw{w(  ]` ceg024@qqkkkeeeeeeeeeeeeee !,@yNPtv@ yyyyyyyyyyyyyyyyyyyyyyy@ B yyyyw @  Step 4 Cause this reaction to go to completion by making as many of the productMOMO]  Times New Roman =/9=/9d