Answer:
Adding sodium to chlorine gas will produce table salt. The formation of a new substance shows that both physical and chemical change occurred.
Explanation:
The major reason why it has to be both physical and chemical is because there are some physical features that would change such as weight, appearance, color among others while the chemical properties would have changed immediately the addition occur
Answer:
Breathing or respiration involves the inhale of oxygen into the lungs and exhale of carbon dioxide into the atmosphere. Cellular respiration involves the breakdown of glucose into carbon dioxide and water in living cells which in turn releases energy.
Hope this helps!
It was proposed by a scientist named Charles Darwin.
B- Electron transport chain
