Exit ticket: Endothermic and Exothermic Reactions

Which of the following best defines an endothermic reaction?

• A reaction that releases energy in the form of heat

• A reaction that absorbs energy from its surroundings

• A reaction that produces light

• A reaction that forms a precipitate

Tags

NGSS.HS-PS1-4

Which of the following is an example of an exothermic reaction?

• Photosynthesis

• Melting ice

• Combustion of methane

• Dissolving ammonium nitrate in water

Tags

NGSS.HS-PS1-4

What is the main energy change that occurs during an exothermic reaction?

• Energy is absorbed from the surroundings

• Energy is released to the surroundings

• No energy change occurs

• Energy is converted to mass

Tags

NGSS.HS-PS1-4

Which statement correctly describes the energy profile of an endothermic reaction?

• The products have less energy than the reactants

• The products have more energy than the reactants

• The energy of the products and reactants is the same

• Energy is not involved in the reaction

Tags

NGSS.HS-PS1-4

Which of the following processes is most likely to be exothermic?

• Evaporation of water

• Dissolving salt in water

• Condensation of steam

• Photosynthesis in plants

A student mixes two chemicals in a beaker and observes that the temperature of the mixture decreases. Which type of reaction has most likely occurred?

• Exothermic reaction

• Endothermic reaction

• Neutralization reaction

• Precipitation reaction

Tags

NGSS.MS-PS1-4

endothermic or exothermic

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

endothermic or exothermic?

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4