Aluminum sulfide : Al₂S₃
ratio cation : anion = 2 : 3
<h3>Further explanation</h3>
Given
Compound of Aluminium
Required
cations anions ratio
Solution
Salt can be formed from cations and anions which have their respective charges.
In the chemical compound formula these charges are crossed with each other
For aluminum it has a +3 charge
1. Aluminum carbide : Al₄C₃
ratio cation : anion = 4 : 3
2. Aluminum chloride : AlCl₃
ratio cation : anion = 1 : 3
3. Aluminum sulfide : Al₂S₃
ratio cation : anion = 2 : 3
4. Aluminum nitride : AlN
ratio cation : anion = 1 : 1
 
        
             
        
        
        
Given: 
K = 0.71 = Kp 
The reaction of sulphur with oxygen is
                             S(s)   + O2(g)  ---> SO2(g)
initial Pressure                   6.90         0
Change                                -x            +x
Equilibrium                     6.90-x          x
Kp = pSO2 / pO2 = 0.71 = x / (6.90-x) 
4.899 - 0.71x  = x
4.899 = 1.71x
x = 2.86 atm = pressure of SO2 formed
temperature = 950 C = 950 + 273.15 K = 1223.15 K 
Volume = 50 L 
Let us calculate moles of SO2 formed using ideal gas equation as
PV = nRT 
R = gas constant = 0.0821 L atm / mol K 
putting other values
n = PV / RT = 2.86 X 50 / 1223.15 X 0.0821 = 1.42 moles
Moles of Sulphur required = 1.42 moles
Mass of sulphur required or consumed = moles X atomic mass of sulphur 
mass of S = 1.42 X 32 = 45.57 grams or 0.04557 Kg  of sulphur
   
 
        
             
        
        
        
Answer:
The sun 
Explanation:
The sun is the source of energy that provides the boost for electrons during photosynthesis
 
        
             
        
        
        
Answer:
carbon dioxide concentration goes down, temperature goes down. Carbon dioxide goes up temp goes up, carbon dioxide is directly related to temperature by insulating it in the earths atmosphere and if there's less of it then the temp would go down.
Explanation:
 
        
             
        
        
        
They represent elements by using symbols