Answer: The main difference between oxide and oxygen is that oxide is a chemical compound with at least one oxygen atom while oxygen is an element whose atomic number is 8. 
Explanation: let me know if it was right or wrong 
 
        
             
        
        
        
Answer:
When a copper is drawn into wire the only change that occurs is change in its shape and size no change will take place into its composition that is the wires are still possessing the properties of copper metal. Thus, a physical change takes place when copper is drawn into wire.
 
        
             
        
        
        
3.47 x  atoms of gold have mass of 113.44 grams.
 atoms of gold have mass of 113.44 grams.
Explanation:
Data given:
number of atoms of gold = 3.47 x  
 
mass of the gold in given number of atoms = ?
atomic mass of gold =196.96 grams/mole
Avagadro's number = 6.022 X 
from the relation,
1 mole of element contains 6.022 x  atoms.
 atoms.
so no of moles of gold given = 
 0.57 moles of gold.
from the relation:
number of moles = 
rearranging the equation,
mass = number of moles x atomic mass
mass = 0.57 x 196.96
mass = 113.44 grams
thus, 3.47 x  atoms of gold have mass of 113.44 grams
 atoms of gold have mass of 113.44 grams
 
        
             
        
        
        
Answer: Europe 
Explanation: it’s in germany