O lvl Chem: Acid Bases and Salts

J89/P2B/Q1

(a) What is an acid?
(b) Describe what you would see when a little copper(II) oxide is warmed with dilute nitric acid.
(c) In what way is copper(II) oxide behaving when it reacts with dilute nitric acid?

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Answer:

(a) An acid is a compound which, when dissolved in water,produces hydrogen ions
(b) The black oxide dissolves in the acid to form a bluish green solution.
(c) It is behaving as a base.