The answer is (2) equal to. In redox reactions, you can't just lose electrons somewhere. If an electrons is lost by one, it must be gained by another. Hence, the importance of balancing redox reactions.
        
             
        
        
        
Protein would be the main one.
        
                    
             
        
        
        
Answer:A
Explanation:
The melting points of solids depend in the relative sizes of ions in the ionic lattice. The smaller the relative sizes of the ions, the higher the lattice energy and the stronger the lattice hence higher melting point. Comparing relative ionic sizes, fluoride ion is lesser in size than chloride ion hence NaF has a higher melting point than NaCl.
 
        
             
        
        
        
Gold is one of the softest metals. So YES 
 
        
             
        
        
        
Answer:
B. s, p, d, f
Explanation:
These things are often referred to as suborbitals and you normally have s,p,d,f. 
S has 1 two orbitals
P has 3 orbitals
D has 5 orbitals
F has 7 orbitals 
and each orbital can house 2 electrons