FALSE.....
A molecule is made up of two identical bonded atoms.
Coals energy is affordable and it is easy to burn.
Answer:
C. Takes heat in, does work, and loses energy heat.
Explanation:
Heat engine is a system makes use of thermal energy (heat) to in order to do mechanical work.
This occurs by converting the heat into mechanical energy. This energy is then used to do work.
The key characteristic of a heat engine is that the substance with which work is done by, goes from a higher temperature to a lower temperature.
Hence, it loses heat as it does work.
A scientific theory is something that can not be proven through experimentation, hope this helps
They are listed in order of increasing atomic numbers