Answer:
it causes alot of harm to the earth.
Explanation:
earthquakes
an so on
Cl2O but the two is a little two after Cl
Answer:
The oxidation number of strontium is +2.
Explanation:
Answers are Intermolecular and London dispersion
CO is not an element because CO is a Compound. Elements contain One capital and one lowercase letter. While Compounds contain two or more capital letters.