The answer is breathing. This is what I got from my homework paragraph. <span>In breathing, oxygen and carbon dioxide are exchanged with the external environment but there is not a gain of energy and a chemical reaction does not occur. </span>
Answer:
Sodium metal and chlorine gas can be obtained with the electrolysis of molten sodium chloride. Electrolysis of aqueous sodium chloride yields hydrogen and chlorine, with aqueous sodium hydroxide remaining in solution.
Answer:Steroids like cholesterol are lipids and have a ring structure
Explanation: