Exo vs Endo Reactions

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Energy flow in reactions

Créé par

Jesslene Tambo

Philippines

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Exo vs Endo Reactions


Froggy Jumps Exo vs Endo ReactionsVersion en ligne Energy flow in reactions par Jesslene Tambo 1 What energy change occurs in an exothermic reaction? a Heat is absorbed from the surroundings b Heat is released to the surroundings c No energy change occurs 2 What energy change occurs in an endothermic reaction? a Heat is released to the surroundings b Heat is absorbed from the surroundings c No energy change occurs 3 Which arrow direction best represents exothermic enthalpy change? a Upward (products have higher energy) b Horizontal (no energy change) c Downward (products have lower energy) 4 Which statement describes an endothermic process? a System releases heat to surroundings b Energy remains constant c System absorbs heat from its surroundings 5 Which sign is used for enthalpy change of an exothermic reaction? a ΔS is negative b ΔH is negative c ΔH is positive 6 Which sign is used for enthalpy change of an endothermic reaction? a ΔH is positive b ΔH is negative c ΔS is positive 7 Which indicator suggests a reaction is exothermic? a Temperature of surroundings falls b No temperature change c Temperature of surroundings rises 8 Which indicator suggests a reaction is endothermic? a Temperature of surroundings falls or remains cool b Temperature of surroundings rises c Vapor color changes only 9 Which example is exothermic? a Combustion of methane releases heat b Photosynthesis in plants (overall endothermic) c Melting ice at 0°C requires energy from surroundings 10 Which example is endothermic? a Burning wood releases heat b Freezing water releases heat c Dissolving ammonium nitrate in water absorbs heat

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Exo vs Endo Reactions

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Exo vs Endo ReactionsVersion en ligne

par Jesslene Tambo

What energy change occurs in an exothermic reaction?

What energy change occurs in an endothermic reaction?

Which arrow direction best represents exothermic enthalpy change?

Which statement describes an endothermic process?

Which sign is used for enthalpy change of an exothermic reaction?

Which sign is used for enthalpy change of an endothermic reaction?

Which indicator suggests a reaction is exothermic?

Which indicator suggests a reaction is endothermic?

Which example is exothermic?

Which example is endothermic?