The diagram below illustrates an experiment set up to investigate the effect of heat on copper (II) carbonate. Study it and answer the questions that follow.
![ChemForm4Term1OpPP1Q19](https://www.easyelimu.com/images/form_4_past_papers/Form_4_term_1_opener_2021/chemistry/Chem_PP1/Qns/ChemForm4Term1OpPP1Q19.PNG)
- Give the expected observation in each test tube.
- Write an equation for the change that occurs in tube X