Exothermic and Endothermic Reactions and Profiles

The reactions W and X are both... (choose 2 correct answers)

• endothermic reactions

• exothermic reactions

• heat absorbing reactions

• heat releasing reactions

Tags

NGSS.HS-PS1-4

Exothermic reactions....

• Require heat

• Absorb heat

• Use heat

• Release heat

Tags

NGSS.HS-PS1-4

Reactions Y and Z are both... (choose 2 correct answers)

• Endothermic reactions

• Exothermic reactions

• Heat absorbing reactions

• Heat releasing reactions

Tags

NGSS.HS-PS1-4

For all reactions, which letter represents the REACTANTS?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

reactions absorb energy around it making the area feel 'colder.' reactions release energy to the surrounding area making the area feel 'warmer.'

• Endothermic

• Exothermic

• Isothermic

Tags

NGSS.HS-PS1-4

The breakdown of Silver Chloride absorbs a great deal of energy from sunlight as it progresses; it can be described as both ​ (a)   and​ ​ (b)   .

• exothermic

• decomposition

• endothermic

• synthesis

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

(a)   require(s) the addition of energy for a reaction to occur.

• Endothermic Reactions

• Exothermic Reactions

• Combustion Reactions

• Condensation

Tags

NGSS.HS-PS1-4

In an endothermic reaction ​ (a)   is required to break the bonds of the reactants than is ​ ​ (b)   when products form.

• more energy

• released

• less energy

• absorbed

Tags

NGSS.HS-PS1-4

In an endothermic reaction, energy is

(a)  

• absorbed

• released

Tags

NGSS.HS-PS1-4

For reactions W and X, the thermal energy of the products is ___________

• higher than that of the reactants

• lower than that of the reactants

Tags

NGSS.HS-PS1-4