Rubbing alcohol is a solution
Answer:
you have to attach the diagram
Explanation:
Concave is not a type of mechanical wave because it doesn’t need a medium for propagation.
Answer:
First of all, it's KNO₃ not KNO.
Second, KNO₃ is neither an acid nor it is a base, infact, it is a salt and therefore it's neutral.
hope that helps...
