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Exo/Endo Formative (FA)

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

What type of reaction is this?

a)

Exothermic

b)

Endothermic

c)

Energy Producing

d)

No way to tell

2.

What kind of equation is this: 2KI + MgCl2 + 200KJ ----> 2KCl + MgI2

a)

Endothermic

b)

Exothermic

3.

How can you tell this reaction is exothermic: MgO + CaS ----> CaO + MgS + 200 KJ

a)

Energy is written on the products side

b)

Energy is being released

c)

Less energy is stored on product side

d)

All of these tell me

4.

What term is given to a reaction which transfers heat energy to the surroundings?

a)

Endothermic

b)

Reversible

c)

Exothermic

d)

Exotermic

5.

When barium hydroxide and ammonium chloride react, the temperature of the mixture decreases. What kind of reaction is this?

a)

Endothermic

b)

Decomposition

c)

Exothermic

d)

Indothermic

6.

Is this diagram endothermic or exothermic

a)

Endothermic

b)

Exotermic

c)

Exothermic

d)

Endote

7.

Solid --> liquid --> gas is what type of reaction?

a)

endothermic

b)

exothermic

c)

catalytic

d)

inhibited

8.

gas --> liquid --> solid is what type of reaction?

a)

endothermic

b)

exothermic

c)

catalytic

d)

inhibited

9.

Baking pizza in the oven

a)

endothermic

b)

exothermic

10.

Ice cubes in your glass of soda melt.

a)

endothermic

b)

exothermic

11.

You freeze juice to make ice pops.

a)

exothermic

b)

endothermic

12.

A school bus burns gasoline while delivering students to school.

a)

exothermic

b)

endothermic

13.
A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true? 
a)
The temperature changed 
b)
It is an endothermic reaction
c)
It is an exothermic reaction 
d)
Two of the answers are correct 
14.

The initial temperature was measured to be 20oC and the final temperature was 45oC. The reaction was

a)

exothermic

b)

endothermic

15.

Look at the graph: Will energy be absorbed or released?

a)

absorbed

b)

released