Chemical Reactions and Factors Affecting Reaction Rate

In a chemical reaction, how quickly or slowly reactants turn

into products is called the

• Catalyst

• Reaction Rate

• Concentration

• Temperature

Tags

NGSS.HS-PS1-5

Increasing the ____ causes the particles (atoms

or molecules) of the reactants to move more quickly so that

they collide with each other more frequently and with more

energy.

• Catalyst

• Surface Area

• Temperature

• Concentration

Tags

NGSS.HS-PS1-5

_______ refers to how much solute is dissolved in

a solution.

• Surface Area

• Catalyst

• Temperature

• Concentration

Tags

NGSS.HS-PS1-5

________ is the measure of how much area of an

object is exposed.

• Surface Area

• Catalyst

• Temperature

• Concentration

A ______ is a substance that speeds up the rate of a

chemical reaction without being used up in the reaction itself.

• Surface Area

• Catalyst

• Temperature

• Concentration

Grains of sugar have a greater _______ than a solid cube of

sugar of the same mass, and therefore will dissolve quicker in water.

• Surface Area

• Catalyst

• Temperature

• Concentratrion

A freshly exposed surface of metallic sodium tarnishes almost instantly if exposed

to air and moisture, while iron will slowly turn to rust under the same conditions.

In these two situations, the ________ refers to how quickly or

slowly reactants turn into products.

• Surface Area

• Rate of Reaction

• Temperature

• Concentration

Tags

NGSS.HS-PS1-5

Adding ______ will increase the rate of reaction because

this causes the particles of the reactants to move more quickly, resulting in more

collisions and more _________.

• Heat / Energy

• Higher Concentrations / Explosions

• Catalysts / Casualties

• Reactants / Products

Tags

NGSS.HS-PS1-5

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

Which of the following are true about how

temperature affects the rate of reaction?

• heating causes the particles of the reactants

  to move more quickly

• lowering the temperature will raise the energy

  level of the particles

• increasing the temperature results in more

  collisions between the particles

Tags

NGSS.HS-PS1-5