Heat of Reaction

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

What kind of equation is this: 2KI + MgCl₂ + 200KJ ----> 2KCl + MgI₂

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

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

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

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

• Endothermic

• Reversible

• Exothermic

• Exotermic

Tags

NGSS.HS-PS3-4

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

• Endothermic

• Exotermic

• Exothermic

• Entrothermic

Tags

NGSS.HS-PS1-4

What type of chemical reaction absorbs energy and requires energy for the reaction to occur?

• Endothermic

• Exotermic

• Exothermic

• Endotermic

Tags

NGSS.HS-PS1-4

An exothermic reaction:

• always involves a solid and a liquid.

• causes a cooling effect in the surrounding environment.

• is a reaction in which the atoms in a substance expand or explode.

• releases more energy into the surroundings than it absorbs.

Tags

NGSS.HS-PS1-4

The root "therm" means _______.

• atom

• cooling

• heat

• reaction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4