1-4 Bond Energy Standard Quiz

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

Tags

NGSS.HS-PS1-4

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

Tags

NGSS.HS-PS1-4

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

Tags

NGSS.HS-PS1-4

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

Tags

NGSS.HS-PS1-4

When energy is absorbed in process, which type of reaction is it?

• fusion

• exothermic

• endothermic

• sublimation

Tags

NGSS.HS-PS1-4

Identify if the following represents exothermic or endothermic:

Cracking open a cold pack

• Endothermic

• Exothermic

Tags

NGSS.HS-PS3-4

Identify if the following represents exothermic or endothermic:

Cause(s) the temperature of the surroundings to increase

• Endothermic

• Exothermic

Tags

NGSS.MS-PS1-4

Identify if the following represents exothermic or endothermic:

Burning Wood

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Identify if the following represents exothermic or endothermic:

Absorbs(s) energy from the surroundings

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

Identify if the following represents exothermic or endothermic:

Cause(s) the temperature of the surroundings to decrease

• Endothermic

• Exothermic