21.On heating calcium carbonate gets converted into calcium oxide and

1.	21.On heating calcium carbonate gets converted into calcium oxide and carbon dioxide.(a) Is this a physical or a chemical change?(b) Can you prepare one acidic and one basic solution by using the products formed in the above processIf so, write the chemical equation involved.
Answer» Answer: i. it's a chemical change ll. Yes Explanation: i. Because NEW substance are FORMED according to the DEFINITION of chemical change ii. CaO is formed ALONGSIDE CO2 the equations are CaO + H2O - Ca(OH)2 which is basic CO2 + H2O - H2CO3 which is acidic

21.On heating calcium carbonate gets converted into calcium oxide and carbon dioxide.(a) Is this a physical or a chemical change?(b) Can you prepare one acidic and one basic solution by using the products formed in the above processIf so, write the chemical equation involved.

Answer»

Answer: i. it's a chemical change

ll. Yes

Explanation: i. Because NEW substance are FORMED according to the DEFINITION of chemical change

ii. CaO is formed ALONGSIDE CO2

the equations are

CaO + H2O - Ca(OH)2 which is basic

CO2 + H2O - H2CO3 which is acidic