A chemical substance has the characteristics that it cannot be separated by physical methods. Seawater and milk can be separated by sedimentation, and air has different components depending on other aspects (such as elevation). Only ammonia is a substance. (thus it can have a formula: NH<span>3)</span>
Answer:
Energy is released.
Explanation:
When an electron absorbs energy, it moves up into an excited state. When it releases energy, it will return to the ground state.
Answer:
I needed to use good precision in my measurement for my chemistry lab
Explanation:
Fifty percent. plz brainliest my answer
Explanation:
1) Thermal and Electric conductivity
2) Metallic strength
