Answer:
A pair of oxygen atoms is a molecule of oxygen. A molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms.
Explanation:
Answer:
Their velocity is 0m/s because the first box was only 10 kg and the second box was double the weight
The blue car is moving with a velocity of -14 m/s using the red car as a reference frame.
Approximately 150-200 species.
