Answer: The moles of HCl are 0.0244
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
where,
n = moles of solute = ?
= volume of solution in ml
Now put all the given values in the formula of molality, we get
Therefore, the moles of HCl are 0.0244
Answer:
Desertification
Explanation:
Desertification is the process by which land becomes more desertlike and unable to support life. This happens when to many livestock overgraze an area.
Answer:
<span>D. Remove electrons from its full outer energy level
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Explanation:
The atom achieves its stable state when its outermost shell is completely full with 8 electrons (based on the octet rule)
Any atom whose outer shell is not completely full tends to lose gain or share electrons in order to complete this shell and become stable
Therefore, it is pointless for an atom with an outer shell having 8 electrons to lose electrons, because by this it convert from being stable to being unstable.
Hope this helps :)
Answer:
Your cation is Pb2+
Explanation:
This is the explanation by chemical reactions
HCl (l) ----> H+(aq) + Cl-(aq)
Pb2+(aq) + 2Cl-(aq) ---> PbCl2 (s) ↓
H2SO4 (l) ----> 2H+ (aq) + SO4-2(aq)
Pb2+(aq) + SO4-2(aq) ---> PbSO4 (s) ↓
NaOH (l) ---> Na+(aq) + OH-(aq)
Pb2+(aq) + 2OH-(aq) ---> Pb(OH)2 (s) ↓
If the reaction takes place in a strong alkaline medium, lead hydroxide dissolves in excess of base
Answer: It has a charge of -2 because it has 2 more electrons than protons meaning it has a negative charge of 2 which is -2. Neutrons don't effect charge.
( +1 +1 -1 -1 -1 -1) = -2
Each proton has a charge of +1 and each electron has -1.
2(1) - 4(1) = -2
Explanation:
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