Answer is: both reactions are exothermic.
<span>In exothermic reactions, heat is released and enthalpy of reaction is less than zero (as it show second chemical reaction).
According to Le Chatelier's principle when the reaction
is <span>exothermic heat is included as a
product (as it show first chemical reaction).</span></span>
Before it is released it as potential energy and after it has been released it transforms into kinetic energy.
Answer: noble gasses
Explanation: zoom on on the red section and look at the key for what red means.
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream
Answer:
its atomic number will be 3 and it's mass number will be 7. it is lithium
