The  amount  of  Al2O3  in moles=  1.11 moles    while in  grams   = 113.22 grams
     <em><u>calculation</u></em>
      2 Al  + Fe2O3 → 2Fe  + Al2O3
     step  1: find the moles of Al  by  use of <u><em>moles= mass/molar  mass  </em></u>formula
     =  60.0/27= 2.22  moles
     Step 2: use the mole ratio to determine the  moles of Al2O3.
  The  mole ratio  of Al : Al2O3 is  2: 1 therefore the moles of Al2O3= 2.22/2=1.11  moles
Step 3:    finds the mass  of  Al2O3  by us of  <u><em>mass= moles x molar mass</em></u><em> </em>formula.
 The molar  mass of Al2O3  =  (2x27)  +( 16 x3) = 102  g/mol
mass is therefore=  102  g/mol  x 1.11= 113.22 grams
               
 
        
             
        
        
        
Like all objects, rockets are governed by Newton's Laws of Motion. The First Law describes how an object acts when no force is acting upon it. So, rockets stay still until a force is applied to move them. Newton's Third Law states that "every action has an equal and opposite reaction".
 
        
             
        
        
        
B) Mg is the alkaline earth metal w/12 protons so following the periodic table to the halogen in the same period is 
Cl: Chlorine 
C) The Neutral noble has w/ 18 electrons is argon so the metal in the same row is 
Na: Sodium
        
             
        
        
        
higher temp=faster motion
lower temp=slowed motion
 
        
             
        
        
        
Answer: The percent yield of the reaction is 77.0 %
Explanation:




According to stoichiometry:
2 moles of  produces = 2 moles of
 produces = 2 moles of 
2.18 moles of  is produced by=
 is produced by= of
 of 
Mass of  =
 =
percent yield =