Is this supposed to be a question, because the answer is right.
Answer:
are you asking your exam questions
Answer/Explanation:
Oxygen - element
argon - element
carbon Dioxide - compound: carbon and oxygen
Neon - element
Helium - element
Sulfur dioxide - compound: sulfur and oxygen
methane - element
hydrogen - element
nitrous oxide - compound: nitrogen and oxygen
iodine - element
carbon monoxide - compound: carbon and oxygen
ammonia - compound: nitrogen and hydrogen
Hope this helps!
Government corruption
Being the Roman emperor was a dangerous job. <span>Civil war thrust the empire into chaos, and more than 20 men took the throne in the span of only 75 years, usually after the murder of their predecessor. </span>