Question

Section A
1 What is mass percentage of a solution?
A hard substance when bent produces a tinkling sound. Predict its nature,
2 Which separation techniques will you apply for the separation of the iron pins fre
3. The plasma membrane is called semi-permeable:
L It allow's the entry of selective substances,​

Answer 1

Answer:

The hard substance is a metal. Actually metals are sonorous and produce tinkling sound when bent.