Exothermic and Endothermic Reactions and Profiles

The energy absorbed by endothermic reactions is used to...

• form chemical bonds between atoms that release a lot of energy when they're formed

• break chemical bonds that require a lot of energy to break

Tags

NGSS.HS-PS1-4

Cooking bacon as it absorbs heat and watching it change color and smell is a good example of an...

• Exothermic chemical reaction

• Endothermic chemical reaction

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NGSS.MS-PS1-2

NGSS.MS-PS1-4

Endothermic reactions feel...

• Hot

• Cold

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

_____ reactions usually feel hot!

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

What type of reaction is this?

• Exothermic

• Endothermic

• Energy Producing

• No way to tell

Tags

NGSS.HS-PS1-4

How can you tell this reaction is exothermic: MgO + CaS ----> CaO + MgS + 200 KJ

• Energy is written on the products side

• Energy is being released

• Less energy is stored on product side

• All of these tell me

Tags

NGSS.HS-PS1-4

What term is given to a reaction which transfers heat energy to the surroundings?

• Endothermic

• Reversible

• Exothermic

• Exotermic

Tags

NGSS.HS-PS3-4

if more heat energy is released in making bonds in the products than is taken in when breaking bonds in the reactants

• Exothermic

• Endothermic

• Exotermic

• Endotermic

Tags

NGSS.HS-PS1-4

In an endothermic reaction, energy is _________.

• absorbed

• released

Tags

NGSS.HS-PS1-4

When barium hydroxide and ammonium chloride react, the temperature of the mixture decreases. What kind of reaction is this?

• Endothermic

• Decomposition

• Exothermic

• Indothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4