Exploring Endothermic and Exothermic Reactions

What is the suggested setup for watching the video and taking notes?

• Full screen notability

• Using a separate device for notes

• Half screen web browser and half screen notability

• Full screen web browser

What happens to energy when chemical bonds are broken?

• Energy is released

• Energy is added

• Energy is converted to mass

• No energy change

In an exothermic reaction, what is a common sign that energy is being released?

• Release of bright light

• Formation of a solid

• Absorption of heat

• Decrease in temperature

What is the main characteristic of a combustion reaction?

• It is always endothermic

• It releases a large amount of energy

• It produces water as a product

• It requires continuous heating

Which type of energy is stored in the motion of particles?

• Phase energy

• Chemical potential energy

• Kinetic energy

• Thermal energy

What type of energy is involved in breaking and forming chemical bonds?

• Kinetic energy

• Chemical potential energy

• Phase energy

• Thermal energy

How do we know that a reaction is endothermic?

• It releases bright light

• It requires continuous heating

• It produces a solid

• It increases the temperature of the surroundings

What happens to the temperature of the surroundings in an endothermic reaction?

• It decreases

• It fluctuates

• It remains the same

• It increases

Where is energy placed in the chemical equation of an exothermic reaction?

• On the reactant side

• It is not shown in the equation

• On the product side

• In the middle of the equation

In the example of vinegar and baking soda, where does the energy come from?

• From a hot plate

• From the surroundings

• From a Bunsen burner

• From the reactants themselves