Wait, do we do both of the places or only the types of elements because i don't understand...
In a endothermic reaction energy from an outside source is continuously being added.
Answer:
Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions
Explanation:
Common salt (sodium chloride) is one of the best-known ionic compounds. Molecular compounds contain discrete molecules, which are held together by sharing electrons (covalent bonding).