Endothermic and Exothermic

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

• Endothermic

• Reversible

• Exothermic

• Exotermic

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

• Endothermic

• Decomposition

• Exothermic

• Indothermic

When calcium dissolves in water, the temperature of the WATER changes from 18°C to 39°C. Which statement is correct?

• The solution at the end is acidic

• The reaction is reversible

• The reaction is exothermic (energy is released into the water)

• The reaction is endothermic (energy is absorbed from the water)

If more heat energy is released in making bonds in the products than is taken in when breaking bonds in the reactants, then the reaction is...

• Exothermic

• Endothermic

• Exotermic

• Endotermic

Is this diagram endothermic or exothermic

• Endothermic

• Exotermic

• Exothermic

• Endote

In an endothermic reaction, energy is _________.

• absorbed

• released

_____ reactions usually feel hot!

• endothermic

• exothermic

Solid --> liquid --> gas is what type of reaction?

• endothermic

• exothermic

• catalytic

• inhibited

gas --> liquid --> solid is what type of reaction?

• endothermic

• exothermic

• catalytic

• inhibited

The graph above is from which type of reaction?

• Endothermic reaction

• Exothermic Reaction