Collision Theory Gizmo

Suppose you held a lighted match to a solid hunk of wood and another match to a pile of wood shavings. Which form of wood will catch fire more easily?

• Wood chunk because of smaller surface area

• Wood chunk because of larger surface area

• Wood shavings because of smaller surface area

• Wood shavings because of larger surface area

From this screenshot, the how would you describe the surface area of the orange and green compound

• a solid with minimum surface area

• a solid with MAX surface area

• a gas with minimum surface area

• a gas with MAX surface area

Suppose you added a spoonful of sugar to hot water and another to ice-cold water. Which type of water will cause the sugar to dissolve more quickly?

• Hot

• Cold

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How does temperature affect the rate of a chemical reaction?

• Increasing temperature increases the rate of reaction

• Increasing temperature decreases the rate of reaction

• Temperature does not impact rate of reaction

• Decreasing temperature increases the rate of reaction

Tags

NGSS.HS-PS1-5

If it took 6 minutes to reach the half life at 200C and 80 minutes to reach the half life at 50C you can conclude that....

• Increasing temperature increases the rate of reaction

• Increasing temperature decreases reaction rate

• Decreasing temperature increases reaction rate

• Temperature does not impact reaction rate

Tags

NGSS.HS-PS1-5

From this screenshot, what can you conclude about the surface area of the compounds

• the blue compound has max surface area but green and orange compound has minimum

• Both compounds have MAX surface area

• Both compounds have MIN surface area

• the green and orange compound has max surface area but the blue compound has minimum

Tags

NGSS.HS-PS1-3

If it took 462 seconds to reach the half life at MAX surface area and 10 minutes to reach the half life at MIN surface area you can conclude that....

• Increasing surface area increases the rate of reaction

• Increasing surface area decreases reaction rate

• Decreasing surface area increases reaction rate

• Surface area does not impact reaction rate

As a reaction progresses, which statement is true

• The concentration of products decreases, and the concentration of reactants increases

• The concentration of reactants decreases, and the concentration of products increases

Tags

NGSS.HS-PS1-5

The amount of TIME it takes for exactly half of your starting material to react and form products is called the...

• Activated complex

• Half-life

• Reaction rate

• collision theory

A temporary structure that is formed when 2 reactants meet to react is called a(n)...

• Activated complex

• Half-life

• Reaction rate

• collision theory