Answer:
difficult
Explanation:
I guessed because I'm smart
The answer is A. Nucleus , electrons are found in the shell/orbital, protons and neutrons are found in the nucleus :)
Answer:
Chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction. All chemical reactions produce different results, which means that not all chemical reactions share the same characteristics
Explanation:
The characteristics of a chemical reaction are :
Evolution of gas
Formation of a precipitate
Change in color
Change in temperature
Change in state
Formation of new substances