Worksheets1-4 Bond Energy Standard Quiz
Total questions: 10
Worksheet time: 6mins
This reaction progress diagram shows the changes during a chemical reaction and the effects on energy. How has the energy changed from reactants to products?
Energy is absorbed
Energy is doubled
Energy is halved
Energy is released
When the reaction shown is conducted in an isolated container, the temperature drops. What conclusion can be drawn about the bond energy of products and reactants?
More energy was absorbed in the formation of chemical bonds than released in the breaking of chemical bonds.
Less energy was absorbed in the breaking of chemical bonds than released in the formation of chemical bonds.
More energy was absorbed in the breaking of chemical bonds than released in the formation of chemical bonds.
Less energy was absorbed in the formation of chemical bonds than released in the breaking of chemical bonds
This reaction progress diagram shows the changes during a two-step chemical reaction and the effects on energy. For the overall reaction, how does the energy change from reactants to
Energy is Halved
Energy is Doubled
Energy is Absorbed
Energy is Released
In many thermodynamically favored reactions, the total bond energy of the products is lower than the total bond energy of the reactants. Therefore, thermodynamically favored reactions are often ________
Endothermic
Conducted in cold conditions
Exothermic
Conducted in warm condictions
When energy is absorbed in process, which type of reaction is it?
fusion
exothermic
endothermic
sublimation
Identify if the following represents exothermic or endothermic:
Cracking open a cold pack
Endothermic
Exothermic
Identify if the following represents exothermic or endothermic:
Cause(s) the temperature of the surroundings to increase
Endothermic
Exothermic
Identify if the following represents exothermic or endothermic:
Burning Wood
Endothermic
Exothermic
Identify if the following represents exothermic or endothermic:
Absorbs(s) energy from the surroundings
Endothermic
Exothermic
Identify if the following represents exothermic or endothermic:
Cause(s) the temperature of the surroundings to decrease
Endothermic
Exothermic
