Paper 2 · Stoichiometry and Mole Calculations
Copper metal is heated strongly in oxygen to form a black solid, B. What is B?
ACopper(I) oxide
BCopper(II) oxide
CCopper carbonate
DCopper hydroxide
Explanation: Copper heated in oxygen forms the black solid copper(II) oxide, CuO.
Derived from ZIMSEC Chemistry 5071/2 Paper 2 Theory, November 2013, Q3
