What is the name when calcium carbonate decompose?

Answer 1

Calcium carbonate is a very stable molecule.

However, if heated (thermal) to 'red heat' it breaksdown(decomposes), with the liberated of carbon dioxide.

The chemicak process is named 'THERMAL DECOMPOSITION'.

Here is the word equation

Calcium carbonate ==heat==> Calcium oxide (Lime) & Carbon dioxide.

Here is the BALANCED reaction equation.

CaCO3(s) ==heat==> CaO(s) + CO2(g)

Visually in the lab. a piece of calcium carbonate is a white solid, On thermal decompistion it remains a solid of the same size, shape and colour(white). The only way you can tell it has decomposed is to weigh it on a balance scales. The calcium oxide(CaO) will have less mass than the calcium carbonate.(CaCO3). The difference is accounted for by the mass of carbon dioxide released.

NB The word 'thermal' comes from Classical Greece, and refers to heat, as in 'thermometer'.

NNB You will find the roots of a lot of 'horrible' scientific words, in Classical Greek and Latin.

Answer 2

i think its thermal decomposition