Question

on worls health day, students of a school went to a hospital for a free health check up. one of the students saw that a compunder water to a substanse A which sets a hard mass substance B which was along surgical bandage used to set fractured bone of a patient
1 identify the substance A and B
2 write a balanced chemical equation of formation of B from A
3 mention any 2 oter uses of A

Answer 1

A is gypsum
B is plaster of paris
Plaster of Paris is used in making toys,decorations,etc