OCO Checkpoint 5 Review

According to the particle diagram, is this chemical equation balanced?

• Yes

• No

Which coefficients would balance this equation?

• 1,1,1

• 2,2,2

• 2,1,2

• 1,2,1

Hydrazine (N₂H₄) is a commonly used rocket fuel. It is used because its violent decomposition produces nitrogen gas (N₂) and ammonia (NH₃). The production of these gases provides hydrazine with its rocket-boosting capabilities. Which substance(s) are the reactant(s) in this process?

• N₂H₄

• N₂

• NH₃

• All of the above

This Lewis Dot Structure Shows:

• Two molecules of water (H₂O) forming one molecule of hydrogen peroxide (H₂O₂)

• One molecule of hydrogen peroxide (H₂O₂) forming two molecules of hydrogen (H₂) and one molecule of oxygen (O₂)

• One molecule of water (H₂O) forming two molecules of hydrogen (H₂) and one molecule of oxygen (O₂)

• Two molecule of water (H₂O) forming two molecules of hydrogen (H₂) and one molecule of oxygen (O₂)

According to this Lewis dot structure, is the equation balanced?

• Yes

• No