Y8 U8 Endothermic & Exothermic [revision]

In an endothermic reaction, heat is ,,,

• taken in
• given out

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

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

Have you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is?

• It is an exothermic reaction
• It is an endothermic reaction
• It is made of ice
• It is dissolving your mouth

Which of the following process is exothermic?

• Candle was melting

• A puddle evaporating

• Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide

• Water freezing to form ice

Evaporation is what kind of change?

• Endothermic
• Exothermic

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

• endothermic

• exothermic

• catalytic

• inhibited

In order to break bonds between atoms...

• energy is absorbed

• energy is released

• energy stays the same

• energy is cancelled