Energy Changes

If the temperature of the reaction mixture increases the reaction is ....

If the temperature of a reaction mixture decreases the reaction is....

Burning fuels is an...

• exothermic reaction

• endothermic reaction

Photosynthesis is an...

• Exothermic reaction

• Endothermic reaction

which of the following equipment would you use to investigate energy changes?

• mass balance

• thermometer

• insulated cup

• glass beaker

The start temperature of a reaction is 20 degrees centigrade, the final temperature is 13 degrees centigrade. Is the reaction...

• exothermic?

• endothermic?

Does this reaction profile show an exothermic reaction or an endothermic reation?

• exothermic

• endothermic

The minimum energy required for a reaction to start is the called the ............................ energy

breaking bonds is endothermic, energy must be taken ..... from the surroundings

making bonds is exothermic, energy is given ......... to the surroundings