The ionic equation represents the element in cation and anionic form. The equation is given as OH⁻ + 2H⁺ → 2H₂O. Thus, option A is correct.
<h3>What is the ionic equation?</h3>
The ionic reaction equation is the representation of the chemicals dissociated as the ions in an aqueous solution. The ionic reaction is given as the cations and anions dissociated from the respective molecule or compound.
The ionic equation between potassium hydroxide and sulfuric acid is shown as,
2K⁺ + OH⁻ + 2H⁺ + SO₄²⁻ → 2H₂O + 2K⁺ + SO₄²⁻
It can also be written as,
Net ionic equation: OH⁻ + 2H⁺ → 2H₂O
Here, others are eliminated as they are spectator ions.
Therefore, option A. OH⁻ + 2H⁺ → 2H₂O is the net ionic equation.
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Answer: will not occur.
Explanation:
A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution. Thus one element should be different from another element.
A general single displacement reaction can be represented as :
a)
Flourine is more reactive than chlorine and hence this reaction cannot occur.
b)
Sodium is more reactive than zinc and hence the reaction will occur.
c)
Iron is more reactive than copper and hence the reaction will occur.
d)
Magnesium is more reactive than hydrogen and hence the reaction will occur.
4.48
pH=pKa+log([A-/HA])
25% deprotonated tells us that A- is .25 and that the rest (75% is protonated) thats .75.
4 = pKa + log \frac{.25}{.75}
4 - log \frac{.25}{.75} = pKa
4.48=pKa