Answer:
yqaeh
Explanation:
Electrolysis of acidified water
Water is a poor conductor of electricity, but it does contain some hydrogen ions , H +, and hydroxide ions, OH -. These ions are formed when a small proportion of water molecules naturally dissociate . ... H + ions are attracted to the cathode , gain electrons and form hydrogen gas.
 
        
             
        
        
        
Answer:
The answer to the question is
<h2>
A. Air, Soil, Sand, Water</h2>
Explanation:
 
        
                    
             
        
        
        
Answer:
The mass of the object would be 491.55g/mL. Hope this helped! :)
Explanation:
D= 7.25g/mL                                                           M=D•V
V= 67.8mL
M=7.25g/mL•67.8mL
M= 491.55g
 
        
             
        
        
        
The simplest way of separating visible solid impurities that do not dissolve in water from water is by using a sieve (option A). 
<h3>What is sieving?</h3>
Sieving is a act of passing substances through a sieve, which is a device with a mesh bottom to separate, in a granular material, larger particles from smaller ones, or to separate solid objects from a liquid.
Sieving is a physical method of separation widely used to separate substances that cannot dissolve in a liquid from that liquid. 
Therefore, the simplest way of separating visible solid impurities that do not dissolve in water from water is by using a sieve.
Learn more about sieving at: brainly.com/question/2760394
#SPJ1
 
        
             
        
        
        
For the following reaction, 76.0 grams of barium chloride are allowed to react with 67.0 grams of potassium sulfate.
The reaction consumes _____ moles of barium chloride. The reaction produces _____ moles of barium sulfate and _____ moles of potassium chloride.
Answer: a) The reaction consumes 0.365 moles of barium chloride.
b) The reaction produces 0.365 moles of barium sulfate and 0.730 moles of potassium chloride.
Explanation:
To calculate the moles :
 
    


 
 
According to stoichiometry :
1 mole of  require 1 mole of
 require 1 mole of 
Thus 0.365 moles of  will require=
 will require= of
  of 
Thus  is the limiting reagent as it limits the formation of product and
 is the limiting reagent as it limits the formation of product and  is the excess reagent.
 is the excess reagent.
As 1 moles of  give = 1 moles of
 give = 1 moles of 
Thus 0.365 moles of  give =
 give = of
  of 
As 1 moles of  give = 2 moles of
 give = 2 moles of 
Thus 0.365 moles of  give =
 give = of
  of 
Thus the reaction consumes 0.365 moles of barium chloride. The reaction produces 0.365 moles of barium sulfate and 0.730 moles of potassium chloride.