Question

what are two reasons scientists might use a model to study what happens on the atomic level when something explodes?
a. the molecules in the reaction are too small to see.
b. the process cannot be understood without a model.
c. the process is very dangerous to study.
d. explosions occur too slowly to study easily.

Explanation:

Atomic - level processes involve extremely small molecules that are not visible to the naked eye. Also, studying actual explosions can be highly dangerous. A model helps overcome these issues. Option B is an over - statement as the process can be understood through other means too, and explosions are fast, not slow.

Answer:

A. The molecules in the reaction are too small to see.
C. The process is very dangerous to study.