Answer:
Please find the answers in the explanation
Step-by-step explanation:
In examination of any scientific observation, some experiments may be needed to be carried out.
When examining evidence, the investigators might want to be more careful examining chemical properties than physical properties because anything that involve chemical reaction are irreversible. While physical one can be reversible.
Also, reaction can easily take place when examining the chemical properties of some substances.
It is seldom for reaction to take place with physical one.
there can be some complications and danger with chemical properties but less complication and danger with physical one.
Therefore, the investigators will want to be more careful when examining evidence on chemical properties than physical properties due to the given reasons above.