AQA Chemistry Paper 1 Questions with
verified correct detailed answers latest
update 2025
Acid--- correct answers ---
When dissolved in water, it releases H⁺ and the solution has a pH
value < 7.
Alkali--- correct answers ---
When dissolved in water, it produces OH⁻ ions. Its solution has a pH >
7.
Base--- correct answers ---
The oxide, hydroxide, or carbonate of a metal that will react with an
acid to form a salt.
Electrolysis--- correct answers ---
, The breakdown of a substance containing ions by electricity
Equilibrium--- correct answers ---
Point, during a reversible reaction, when the amount of reactants and
products no longer changes
Neutral--- correct answers ---
A solution with a pH value of 7 which is neither acidic nor alkaline.
Or, something that has no electrical charge
Hydrochloric acid + sodium hydroxide -->--- correct answers ---
sodium chloride + water
Ore--- correct answers ---
Rock which contains enough metal to make it economically
worthwhile to extract.
verified correct detailed answers latest
update 2025
Acid--- correct answers ---
When dissolved in water, it releases H⁺ and the solution has a pH
value < 7.
Alkali--- correct answers ---
When dissolved in water, it produces OH⁻ ions. Its solution has a pH >
7.
Base--- correct answers ---
The oxide, hydroxide, or carbonate of a metal that will react with an
acid to form a salt.
Electrolysis--- correct answers ---
, The breakdown of a substance containing ions by electricity
Equilibrium--- correct answers ---
Point, during a reversible reaction, when the amount of reactants and
products no longer changes
Neutral--- correct answers ---
A solution with a pH value of 7 which is neither acidic nor alkaline.
Or, something that has no electrical charge
Hydrochloric acid + sodium hydroxide -->--- correct answers ---
sodium chloride + water
Ore--- correct answers ---
Rock which contains enough metal to make it economically
worthwhile to extract.
