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Heat and ThermoChem Review

Authored by David Reeder

Chemistry

12th Grade

Heat and ThermoChem Review
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28 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In an endothermic reaction the system is releasing energy.

True
False

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

What type of reaction is shown in the picture?

endothermic
exothermic

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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

Endothermic

Exothermic

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

C2H4 + 3O2 → 2CO2 + 2H2O + 1411 kJ

Given the balanced equation for the combustion of C2H4, how much heat energy will 5Liters of C2H4 make?

955

315

249

735

114

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A catalyst works by

changing the order of the reaction
increasing the temperature
lowering the activation energy
making the activated complex

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

What is the Heat is given off in this reaction?

200 KJ

400 KJ

500 KJ

300 KJ

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

How much activation energy is needed for this reaction?

300 KJ

500 KJ

400 KJ

100 KJ

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