Answer:
metallic bond
because this diagram is electron gas theory which shows metallic bond
Elements and compounds are both examples of pure substances. Compounds are substances that are made up of more than one type of atom. Elements are the simplest substances made up of only one type of atom. i hope that helps:)
Answer:
40%
Explanation:
Calculate the percent of the mass that is carbon:

Answer:
fitness. the ability of an organism to survive and reproduce in its environment. adaptation. the inherited characteristic that increases an organism's chance of survival.