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AS and A Level
IMPORTANT
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Write ionic equations for the reaction in aqueous solution between sodium hydroxide and nitric acid.

Important Questions on Equilibria

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AS and A Level
IMPORTANT
Write ionic equations for the reaction in aqueous solution between potassium hydroxide and hydrochloric acid.
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AS and A Level
IMPORTANT
Identify which reactants are acids and which are bases in the following reactions: NH4++H2ONH3+H3O+.
EASY
AS and A Level
IMPORTANT
Identify which reactants are acids and which are bases in the following reactions: HCOOH+HClO2HCOOH2++ClO2-.
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AS and A Level
IMPORTANT
Identify the acid and the base on the right-hand side of these equilibria: HClO2+HCOOHClO2-+HCOOH2+.
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AS and A Level
IMPORTANT
Identify the acid and the base on the right-hand side of these equilibria: H2S+H2OHS-+H3O+.
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AS and A Level
IMPORTANT
Hydrazine, N2H4, is a weak base. Write a chemical equation to show the equilibrium reaction of hydrazine with water.
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AS and A Level
IMPORTANT
Hydrazine, N2H4, is a weak base. State the relative concentrations (high or low) of the N2H4, molecules and the products.
EASY
AS and A Level
IMPORTANT

The pH of a solution depends on the hydrogen ion (hydroxonium ion) concentration. Which concentration of ethanoic acid in Table 8.10 has the highest concentration of hydrogen ions in solution?

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