Why do the minerals calcite and dolomite bubble with the mineral or its powder are placed in hydrochloric acid?
A)Both minerals are sulfides,and the acid reacts to release sulfur dioxide gas.
B)Both minerals are metal hydrides,and when placed in hydrochloric acid they give off hydrogen gas.
C)The acid and the mineral together react with oxygen in the air,releasing CO2 gas.
D)The acid reacts with the mineral to release CO2 gas that is bound into the crystal as carbonate ion.

Question

Quizplus · Accepted Answer

Calcite and dolomite are both carbonate minerals, and they contain CO2 gas bound into their crystal structure as carbonate ion. When they are placed in hydrochloric acid, the acid reacts with the carbonate ion to release carbon dioxide gas, leading to the bubbling observed.

Why Do the Minerals Calcite and Dolomite Bubble with the Mineral