Prefixes
Names-->Formulas
Formulas-->Names
Real-World Molecules
Challenge Round
100

1?

Mono

100

◦Write the formula for carbon dioxide.

◦CO₂

100

Name CO.

Carbon Monoxide

100

◦H₂O is more commonly known as what?

Water

100

◦Name CCl₄.

◦carbon tetrachloride

200

2?

Di

200

◦Write the formula for dinitrogen monoxide.

◦N₂O

200

Name NO2.

Nitrogen Dioxide

200

◦What simple covalent molecule in air is essential for humans? (O₂)

Oxygen

200

◦Write the formula for nitrogen pentachloride.

NCl5

300

3?

Tri

300

◦Write the formula for sulfur trioxide.

◦SO₃

300

Name P2O5.

Diphosphorus pentaoxide

300

◦CH₄ is commonly known as what gas?

Methane

300

◦Name N₂F₄.

◦dinitrogen tetrafluoride

400

4?

Tetra

400

◦Write the formula for phosphorus pentachloride.

PCl5

400

◦Name SF₆.

◦sulfur hexafluoride

400

◦The toxic gas CO is called what?

Carbon Monoxide

400

◦Write the formula for trisulfur dioxide.

◦S₃O₂

500

5?

Penta

500

◦Write the formula for nitrogen trifluoride.

NF3

500

◦Name N₂O₄.

◦dinitrogen tetroxide

500

◦CO₂ is what molecule?

Carbon Dioxide

500

◦Name Cl₂O₇.

◦dichlorine heptoxide