Answer:
Lake and River pollution?
Explanation:
 
        
                    
             
        
        
        
The equation for calculating a mass is as follows:
m=n×M
Molar mass (M) we can determine from Ar that can read in a periodical table, and a number of moles we can calculate from the available date for N:
n(H2SO4)=N/NA
n(H2SO4)= 1.7×10²³ / 6 × 10²³
n(H2SO4)= 0.3 mole
Now we can calculate a mass of H2SO4:
m(H2SO4) = n×M = 0.3 × 98 = 27.8 g
        
             
        
        
        
Answer: Therefore, the volume of a 0.155 M potassium hydroxide solution  is 56.0 ml
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
According to the neutralization law,
 
where,
 = molarity of
 = molarity of  solution = 0.338 M
 solution = 0.338 M
 = volume of
 = volume of  solution = 25.7 ml
 solution = 25.7 ml
 = molarity of
 = molarity of  solution = 0.155 M
 solution = 0.155 M
 = volume of
 = volume of  solution = ?
 solution = ?
 = valency of
 = valency of  = 1
 = 1
 = valency of
 = valency of  = 1
 = 1
 
 
Therefore, the volume of a 0.155 M potassium hydroxide solution  is 56.0 ml
 
        
             
        
        
        
Answer:
Its saying how many electronics are in your house.
Explanation:
Such as a tablet or a tv.etc
 
        
             
        
        
        
False
The adjective corrosive means it will definitely harm the skin