What happens during thermal decomposition?

Answer 1

Thermal decomposition refers to the process of a substance decomposing as a result of being exposed to heat. The heat typically breaks the chemical bonds in the substance, which leads to the decomposition.

Answer 2

It is the break down of a compound by heat; heat is required to break chemical bonds in the compound and so the term 'thermal.'

-H2CO3 → H2O + CO2

Carbonic acid → Water + Carbon dioxide

(Heat applied)

-CaCO3→CaO + CO2

(Heat applied)

Calcium carbonate → Calcium oxide + Carbon dioxide

Answer 3

the reaction in which a single compound breaks down to give two or more simpler substances are called decomposition reaction.

there are three types of decomposition reactions

1.thermal decomposition

2.electrolytic decomposition

3.photolytic decomposition

examples:-

CaCO3 (arrow) CaO + O2

2NaCl (arrow) 2Na + Cl2

2AgCl (arrow) 2Ag + Cl2

Answer 4

If in a reaction 2 or more than 2 substances are obtain by decomposition of 1 substance by heating, then the reaction is called thermal decomposition reaction

For eg. CaCo3 give rise to CaO + CO2 (in this reaction lime stione is heated, calcium oxide & carbon dioxide r obtained due to decomposition reaction. Hence it is an eg. of thermal decomposition reaction.)

Answer 5

it is the spliting of something by heat its carbonate element

Answer 6

During thermal decomposition, compounds absorb energy and are broken apart.

Answer 7

Zinc nitrate decomposes on heating to give zinc oxide, nitrogen dioxide and oxygen:

Zn(NO3)2 (s) -----> 2ZnO (s) + 4NO2 (g) + O2 (g)

Answer 8

During thermal decomposition a big molecule is transformed in smaller molecules

Answer 9

it is used to measure a straight line