Answer:
Uh first of all this is algebra but I'll answer this
First distribute the three and 5 (Multiply them by both terms inside parenthesis.
3x-6=5x+20
Then add like terms
8x=14
Divide 8 by 8 and 8 by 14
x = 14/8 
Explanation:
 
        
                    
             
        
        
        
Answer:
3.59 moles
Explanation:
Hopefully this helps! :) 
Mark as brainliest if right!
 
        
             
        
        
        
To Earth, since it has the same radio and masses. This is what I believe.
        
             
        
        
        
Answer:
hypochlorite ion
Explanation:
The hypochlorous acid, HClO, is a weak acid with Ka = 1.36x10⁻³, when this acid is in solution with its conjugate base, ClO⁻ (From sodium hypochlorite, NaClO) a buffer is produced. When a strong acid as HCl is added, the reaction that occurs is:
HCl + ClO⁻ → HClO + Cl⁻.
Where more hypochlorous acid is produced.
That means, the HCl reacts with the hypochlorite ion present in solution
 
        
             
        
        
        
Explanation:
Moles of metal, 
=
 
4.86
⋅
g
24.305
⋅
g
⋅
m
o
l
−
1
 
=
 
0.200
 
m
o
l
 .
Moles of 
H
C
l
 
=
 
100
⋅
c
m
−
3
×
2.00
⋅
m
o
l
⋅
d
m
−
3
 
=
 
0.200
 
m
o
l
 
Clearly, the acid is in deficiency ; i.e. it is the limiting reagent, because the equation above specifies that that 2 equiv of HCl are required for each equiv of metal.
So if 
0.200
 
m
o
l
 acid react, then (by the stoichiometry), 1/2 this quantity, i.e. 
0.100
 
m
o
l
 of dihydrogen will evolve.
So, 
0.100
 
m
o
l
 dihydrogen are evolved; this has a mass of 
0.100
⋅
m
o
l
×
2.00
⋅
g
⋅
m
o
l
−
1
 
=
 
?
?
g
 .
If 1 mol dihydrogen gas occupies 
24.5
 
d
m
3
 at room temperature and pressure, what will be the VOLUME of gas evolved?