Unit 8- Thermochemistry

In an exothermic reaction, heat is ...

• taken in
• given out

In an endothermic reaction, heat is ,,,

• taken in
• given out

What type of reaction occurs in a hand warmer

• exothermic
• endothermic

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same
• Increase
• Decrease

When iron nails get rusty, heat is released.  What process is this?

• Exothermic
• Endothermic

In an endothermic reaction the system is releasing energy.

• True
• False

Is the combustion of gasoline endothermic or exothermic?

• Endothermic
• Exothermic

During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______. 

• Warm
• Cold

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? 

• The temperature changed 
• It is an endothermic reaction
• It is an exothermic reaction 
• Two of the answers are correct 

If they energy required to break the bonds is greater than the energy given out by making new bonds the reaction is

• Exothermic
• Endothermic
• Neutralisation