I believe the answer is chemical reactivity because: Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties.
Answer:
PE = (|accepted value – experimental value| \ accepted value) x 100%
Explanation:
Answer:

Explanation:
As per the formula of thermal expansion we know that

so here we will have



so here change in the length of the rod is given as




Answer: Constructive interference
Explanation: Just took the test