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:Heat may be transferred by conduction, convection…Ice of mass 10g at 5ºC was completely converted to…Ice of mass 50g at 0°C was completely melted by 70%…An immersion heater rated 400W, 220V is used to heat…What volume of hydrogen will be produced if 100cm3…