Differentiating Exothermic and Endothermic Reactions

The video tutorial explains the differences between exothermic and endothermic reactions. Exothermic reactions release energy, often in the form of heat or light, and are considered downhill reactions because the products have less energy than the reactants. Endothermic reactions absorb energy, requiring heat from the surroundings, and are considered uphill reactions because the products have more energy than the reactants. An example of an endothermic reaction is an ice pack, which absorbs heat and feels cold. The video concludes with a reminder about the importance of kindness.

What type of reaction absorbs heat?

• Exothermic

• Endothermic

• Combustion

• Neutralization

Tags

NGSS.MS-PS1-4

What does 'exo' in exothermic mean?

• Heat

• Exit

• Enter

• Energy

Tags

NGSS.MS-PS1-4

In an exothermic reaction, how is energy often represented in a chemical equation?

• As a reactant

• As a product

• As a catalyst

• As a solvent

Which of the following is a characteristic of an exothermic reaction?

• Energy is absorbed

• Reaction is uphill

• Products have more energy than reactants

• Energy is released

Tags

NGSS.MS-PS1-4

What does 'endo' in endothermic mean?

• Enter

• Energy

• Heat

• Exit

Tags

NGSS.MS-PS3-4

In an endothermic reaction, how is energy often represented in a chemical equation?

• As a catalyst

• As a solvent

• As a reactant

• As a product

What happens to an ice pack when the chemicals inside mix?

• It gets hot

• It evaporates

• It changes color

• It gets cold

Tags

NGSS.MS-PS1-4

Which type of reaction can be thought of as an uphill reaction?

• Neutralization

• Exothermic

• Combustion

• Endothermic

Tags

NGSS.MS-PS3-4