Question #c6e7b

1 Answer
Oct 10, 2014

The heating of solid copper(II) carbonate is a thermal decomposition reaction . The addition of heat energy causes chemical bonds to break and the reactant decomposes into two products.

Word Equation:

copper(II) carbonate + heat #rarr# copper(II) oxide + carbon dioxide

Molecular Equation:

#"CuCO"_3("s")# + heat #rarr# #"CuO"("s")# + #"CO"_2("g")#

This reaction is accompanied by a color change. The green copper(II) carbonate turns into black copper(II) oxide.

http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/rocks/limestonerev1.shtml