Answer:
theory
Explanation:
A theory has been tested and proven several times and oftentimes has a large amount of information, research, and evidence standing behind it.
Hope this helps! :)
C the answer is cesium, study's show that it has the lowest ionization out of all elements. Hope this helped!
Answer:
4- radioactive isotopes
Explanation:
I don't remember exactly but this question was on the regents
Boiling water is a physical change, because it is changing state of matter, there is a controllable temperature change, and you can change it back.
Frying the egg white is a chemical change, because there is a change of matter, controllable temperature change, but you CAN'T change it back.
