Chemical Reactions

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

• Reaction between iron and oxygen.

• Reaction between water and salt.

• Reaction between baking soda and vinegar

• Reaction between hydrogen and oxygen.

Tags

NGSS.HS-PS1-4

During a camping trip, you observe several processes. Which of these would be an example of an exothermic reaction?

• Water in your bottle freezing overnight.

• The plants around you performing photosynthesis.

• Water vapor condensing into liquid

• The gasoline used to fuel your camp stove combusting.

Tags

NGSS.MS-PS3-5

Which factor affects endothermic reactions?

• Space travel

• Pressure

• Concentration

• Temperature

Tags

NGSS.HS-PS1-5

Which factor affects exothermic reactions?

• temperature

• pressure

• catalyst

• concentration

Tags

NGSS.HS-PS1-5

If Ms. Weidemiller asked you, which of the following is NOT an example of an endothermic reaction? Which one would you pick?

• Combustion of gasoline

• Freezing of water.

• Photosynthesis in plants.

• Burning of wood.

During a science experiment, Angelo was asked to identify which of the following is NOT an example of an exothermic reaction?

• Lighting a matchstick

• Photosynthesis in plants

• Burning of natural gas

• Respiration in humans

Increasing the concentration of reactants generally affects which type of reaction?

• activation energy of reaction

• rate of reaction

• equilibrium of reaction

• temperature of reaction

Tags

NGSS.HS-PS1-5

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

• Reaction between iron and oxygen.

• Reaction between hydrogen and oxygen.

• Reaction between baking soda and vinegar

• Reaction between water and salt.

Tags

NGSS.HS-PS1-4

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

• Combustion of gasoline

• Photosynthesis.

• Freezing of water.

• Eating a sandwich

Tags

NGSS.HS-PS1-4

Which factor affects endothermic reactions?

• Concentration

• Catalyst

• Pressure

• Temperature

Tags

NGSS.HS-PS1-5