iClicker Session Topic 5 & 6

Question 1

What is the formula for gaseous nitrogen monoxide?

Answer 1

NO

Question 2

What is the formula for gaseous dinitrogen oxide?

Answer 2

N₂O

Question 3

What is the formula for nitrogen dioxide?

Answer 3

NO₂

Question 4

Chemical equation proportions should be in what form?

Answer 4

The lowest common multiple.

Question 5

Heat gained and the energy of the system going up from the reactants to the products is what kind of reaction? (Energy is absorbed by the system.)

Answer 5

Endothermic

Question 6

Heat as a reactant is what kind of reaction?

Answer 6

Heat is a reactant. The reaction is endothermic. Energy is being absorbed by the system. This means the energy is the system goes up.

Question 7

What kind of reaction is a combustion reaction?

Answer 7

Exothermic, heat is released.Energy is being released by the system. This means the energy of the system goes down.

Question 8

In the atmosphere there are many single oxygen atoms. When these atoms combine to form oxygen (remember that oxygen is diatomic), the potential energy of the 2 oxygen atoms does what?

Answer 8

Decreases and energy is released as heat.Making a bond is an exothermic process. Energy is released by the system. Potential energy goes down.