Answer:
When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop.
Answer:
A mixture is a physical combination of substances thus it only requires physical processes to separate.
The Answer is B.
*NEGATIVE CHARGE, FOUND OUTSIDE THE NUCLEUS*
Answer:
an oxygen atom with 8 electrons, 8 protons and 9 neutrons
