Question

17. a) A compound which is prepared from gypsum has the property of hardening when mix
hing when mixed with
right quantity of water.
1) Identify the compound
in) Write the chemical equation for its preparation.
iii) mention one important use of it.
iv) write a balanced chemical equation for the following reaction: Hydrogen sulphide las
reacts with oxygen gas to form sulphur di oxide and water.​

Answer 1

Answer:

plaster of paris is prepared from gypsum