Answer:
If this is a multiple choice question, then the answer is D.
Explanation:
Compounds are composed of atoms, which are composed of subatomic particles and consist of matter. Since they are composed of atoms rather than vice-versa, compounds cannot be found inside atoms and are not the most basic form of matter (ruling out A and C). A pure substance contains atoms, which are each composed of subatomic particles. Therefore, a pure substance must have atoms if it contains subatomic particles (ruling out B). The only answer left is D.
 
        
             
        
        
        
Answer:
the middle 
Explanation:
the left one bulb gets power from the outher bulb 
the one on right has more bulbs
 
        
                    
             
        
        
        
Answer:
Mass of the box is 25kg
Explanation:
From Newton's second law of motion
Force= mass. acceleration
With the symbol 
F=m.a
m=F/a      m=(50N)/(2m/s²)
                 m=25kg
 
        
             
        
        
        
Answer:
Explanation:
1. when both sides of the reactants and the products are equal 
like h+oh ⇒ h20 
hydrogen has 2 atoms on both sides and oxygen  has one  on both sides
2. no they are put to balance the equation
3. nope they are treated equally as all the other states 
4. no if u are talking about a formula unit like NaCl for example it is aqueous not each element taken on its own if u are talking about just elements then i said before all states are treated equally 
5. yup
 
        
             
        
        
        
B. fungi
I hope this helps!