Y9 rates of reaction

Which factors increase the rate of a reaction?

• increasing temperature

• increasing concentration

• increasing surface area

• all of these

Tags

NGSS.HS-PS1-5

Reactions that give out heat to the surrounding are classified as one of the following:

• Spontaneous

• Exothermic

• sluggish

Tags

NGSS.HS-PS1-4

Which of the following increase the reaction rate?

• less surface area

• lower temperature

• increased concentration

Tags

NGSS.HS-PS1-5

What is the rate of reaction?

• How fast a reaction is

• How big a reaction is

• How loud a reaction is

Tags

NGSS.HS-PS1-5

How can you increase the rate of a reaction?

• Decrease the pressure

• Decrease the concentration

• Increase the concentration

Tags

NGSS.HS-PS1-5

Icing sugar has a greater ______ _____ than a solid cube of

sugar.

• Surface Area

• Catalyst

• Temperature

Tags

NGSS.HS-PS1-3

Why does breaking up a solid reactant increase the rate of reaction?

• it creates more solid
• it creates more energy
• it increases the surface area
• it increases the concentration

The word for a substance that you react at the start of a chemical reaction...

• Reaction

• Reactant

• Product

• The result

Tags

NGSS.MS-PS1-5

The word for a substance created in a chemical reaction...

• Reaction

• Reactant

• Product

• Mass

Tags

NGSS.HS-PS1-6

Objects hitting each other

• Collision

• Catalyst

• Explosion

• Reaction

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

NGSS.HS-PS2-3