Energy Changes
Cards (24)
- What occurs at the cathode during electrolysis?
- What occurs at the anode during electrolysis?
- How are reactions at electrodes represented?
- Write the half equation for hydrogen production at the cathode.
- Write the half equation for oxygen production at the anode.
- What is the role of energy changes in chemical reactions?
- What type of reaction releases energy to the surroundings?
- What type of reaction absorbs energy from the surroundings?
- What happens to the temperature of surroundings in exothermic reactions?
- What happens to the temperature of surroundings in endothermic reactions?
- Give an example of an exothermic reaction.
- Give an example of an endothermic reaction.
- What is activation energy?
- What do reaction profiles show in chemical reactions?
- How can you identify if a reaction is exothermic or endothermic using reaction profiles?
- What is the overall energy change in an exothermic reaction?
- What is the overall energy change in an endothermic reaction?
- What do cells contain that produces electricity?
- What factors affect the voltage produced by a cell?
- What is a simple cell made of?
- What is the difference between non-rechargeable and rechargeable batteries?
- What is the overall reaction in a hydrogen fuel cell?
- What is a potential advantage of hydrogen fuel cells?
- What must students be able to write for hydrogen fuel cells?