Question

. Which of the following is correctly matched?
I. Iron: Element; Rust: Compound III. Mercury: Element; Copper: Compound
II. Oxygen: Element; Water: Compound IV. Nitrogen: Element; Nitrous Oxide:

Answer 1

Answer:

II. is correctly matched

Explanation:

oxygen-O-element

water-H20-compound

nitrogen-N-element

nitrous oxide-N2o- compound