Which formula does not show a functional group? A) CH3CH2CH2CHO B) CH3CH2CH2CH3 C) CH3CH2CH2COOH D) CH3CH2COOCH3

Which substances have the lowest melting points: ionic covalent, or metallic

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?