Practice Quiz: Sum of the coefficients of balanced equation; Protons and electrons etc.

I just need the answer!!!!!!!!

Question 36    Multiple Choice  20 points    
   Atoms of the same element with different mass numbers are called:  
  nucleons  
neutrons  
allotropes  
chemical families  
isotopes  


Question 37    Multiple Choice  20 points    
   Which is the correct formula for copper(II) phosphate?  
  Cu2PO4  
Cu3(PO4)2  
Cu2PO3  
Cu(PO4)2  
Cu(PO3)2  

Question 38    Multiple Choice  20 points    
   When a chemical equation is balanced, it will have a set of whole number coefficients which cannot be reduced to smaller whole numbers. When the following chemical equation is balanced, what is the sum of the coefficients (do not forget to add in the coefficient one if it occurs)?
___ Al + ___ H2SO4  ___ Al2(SO4)3 + ___ H2  
  3  
5  
6  
9  
12  


Question 39    Multiple Choice  20 points    
   CH3NH2 represents a/an  
  alcohol  
alkyne  
amine  
ester  



Question 40    Multiple Choice  20 points    
   How many protons and electrons are present in Bromine?  
  80 protons, 35 electrons  
45 protons, 35 electrons  
35 protons, 45 electrons  
35 protons, 35 electrons