Answer:
ions need to be present in the water. If there are no ions in solution, no electricity is conducted. since, in water, electricity is conducted, this means that HCl completely ionizes to H + and C l − ions. However, in chloroform, since there is no conduction, HCl does not ionize and stays as the
Explanation:
Answer : To calculate the standard molar enthalpy of complete combustion of liquid ethanol can be done by using the formula given below;

Now, the enthalpies of the elements in their standard state is zero always.
So the

Here we can avoid the heat of enthalpy of oxygen,carbon dioxide and water as they exists in their standard states.
So the

=
Hey there!:
Balanced Equation , for the reaction:
3 H₂SO₄(aq) + 2 Fe(s) → Fe₂(SO₄)₃(aq) + 3 H₂(g)
2 moles Fe ---------------------------------- 3 moles H₂
0.250 moles Fe ---------------------------- ( moles H₂ ) ??
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moles H₂ = 0.250 × 3 / 2
moles H₂ = 0.75 / 2
moles = 0.375 moles of H₂
Hope this helps!
I think the answer is reversible. Reversible reaction is a kind of reaction which can react in both direction at the same time. And when the both side reactions get the same speed, the reaction is at a equilibrium state.