Reaction rate

What do you increase when you crush an alka seltzer tablet?

• Surface area

• temperature

• concentration

• pressure

Tags

NGSS.HS-PS1-5

Which graph shows the highest reaction rate?

• a

• b

• c

• d

Tags

NGSS.HS-PS1-5

Catalysts permit reactions to proceed along a ___________energy path.

• lower

• higher

• magnetic

• psycho's

Tags

NGSS.HS-PS1-4

Smaller particle size allows for a _________ surface area to be exposed for the reaction.

• larger

• smaller

• rectangular

• spherical

Pick the TWO (2) options that will INCREASE the rate of a reaction.

• Reducing Heat

• Adding Catalyst

• Adding Heat

• Removing Catalyst

Tags

NGSS.HS-PS1-5

Activation energy is only required to start an exothermic reaction.

• false

• true

Tags

NGSS.HS-PS1-4

Where does the energy needed for an endothermic reaction come from?

• reactants

• products

• environment

Tags

NGSS.HS-PS1-4

The minimum energy required to start a reaction is:

• enthalpy (E₁)

• enthalpy (E₂)

• activation energy (A.E.)

• the heat of the reaction

Tags

NGSS.HS-PS1-4

"Rate" is related to:

• volume

• time

• distance

• percentage

What type of reaction is this?

• Endothermic
• Exothermic

Tags

NGSS.HS-PS1-4