Which of the following is not decomposed by heat? by Sunday | Aug 25 | Chemistry WAEC | 0 comments A. CaCO3 B. CuCO3 C. ZnCO3 D. Na2CO3 E. MgCO3 Correct Answer: Option D – Na2CO3 Users Also Read These:An immersion heater rated 400W, 220V is used to heat…Calculate the heat energy required to vaporize 50g…Which of the following surfaces will absorbs radiant…Ice of mass 10g at 5ºC was completely converted to…A solid of mass 0.5kg initially at 50oC melts at…