CHEM: Quiz #2 Review: endo/exo

Separate the characteristics into either endothermic or exothermic:

Groups:

(a) Endothermic

,

(b) Exothermic

• heat travels from the system to the surroundings

• surroundings gain heat energy

• produces energy

• heat travels from the surroundings to the system

• system absorbs heat energy

• surroundings lose heat energy

• needs energy

• surroundings feel colder

• surroundings feel warmer

• system releases heat energy

Separate the characteristics into either endothermic or exothermic:

Groups:

(a) Endothermic

,

(b) Exothermic

• reactants have more potential energy

• 
• 
• increases kinetic energy of surroundings

• 
• 
• reduces kinetic energy of surroundings

• product have more potential energy

The reactants have more potential energy than the products in a(n) __________ reaction because heat is being released.

• exothermic

• endothermic

• neutralization

• exoscopic

The products have more potential energy than the reactants in a(n) __________ reaction because heat is being absorbed.

• exothermic

• endothermic

• neutralization

• exoscopic

The energy of the system ​ (a)   and the energy of the surroundings ​ (b)   in an endothermic reaction.

• increases
• decreases
• stays the same

The energy of the system ​ (a)   and the energy of the surroundings ​ (b)   in an exothermic reaction.

• increases
• decreases
• stays the same

burning wood - (a)  

chopping wood - (b)  

• chemical change
• physical change
• physiological change
• fundamental change

Label the type of energy for each picture

a

b

c

d

e

gravitational

mechanical (kinetic)

sound

magnetic

electric

thermal

heat

light

chemical

match the equation to the type of reaction it is:

• exothermic

• 
• don't use this one

• match with "don't use this one"

• endothermic

• 

Place the pictures into the correct category:

Groups:

(a) Endothermic

,

(b) Exothermic

• 
• 
• 
• 
• 
• 
• 
•