Names:

1)   A mixture has a total mass of 52 kg.  In this mixture is 3.5 kg of table salt (NaCl).  What is the percent table salt?
 
 
 
 
 
 

                                                                                                                                   %
 

2)   A sand-clay-gravel mixture consists of the following:
          3.3 g sand
          9.5 g clay
          4.2 g gravel

     What is the percent each?
 
 
 
 
 

                                                                                                                % sand
 

                                                                                                                % clay
 

                                                                                                                % gravel