Ratios and Rates

Which component of collision theory is represented in the image?

• Correct orientation of molecules

• molecules collide with sufficient energy

• Products become reactants

• Molecules form an activated complex

In standard conditions data for line B was recorded. If we run the reaction again at a higher temperature, which line of data would likely be recorded?

• A

• B, again

• C

• No reaction occurs

Tags

NGSS.HS-PS1-5

In standard conditions data for line B was recorded. If we run the reaction again with reactants at lower concentrations, which line of data would likely be recorded?

• A

• B, again

• C

• No reaction occurs

Tags

NGSS.HS-PS1-5

In standard conditions data for line B was recorded. If we run the reaction again with a catalyst, which line of data would likely be recorded?

• A

• B, again

• C

• No reaction occurs

Tags

NGSS.HS-PS1-5

In the equation 2 Al₂O₃ → 4 Al + 3 O₂, what is the mole ratio of aluminum to oxygen?

• 10:6 

• 3:4

• 4:3

• 2:3

Tags

NGSS.HS-PS1-7

Mole Ratios used for conversions are derived from:

• the molar mass of the reactants in the balanced chemical equation

• the coefficients of the balanced chemical equation

• the subscripts of the products in the balanced chemical equation

• the group number of each element in the balanced chemical equation

Tags

NGSS.HS-PS1-7

What is the mole ratio of iron sulfide to oxygen gas?

• 4/7

• 7/4

• 2/7

• 7/2

What is the mole ratio of iron oxide to oxygen gas?

• 4/7

• 7/4

• 2/7

• 7/2

Tags

NGSS.HS-PS1-7

What is the mole ratio of water to oxygen?

• 4/4

• 4/5

• 6/4

• 6/5

which factor that affect reaction rate is represented?

• Temperature

• Catalyst

• Surface Area

• Concentration

Tags

NGSS.HS-PS1-5