Limited Reactant

Body + 4 Tires --> 1 car
How many cars can you make with 92 tires and 34 bodies? 
In this senario the tires would be the _____________  reactant. 

• Limiting 

• Excess 

When the limiting reactant is used up, what happens?

• the reaction speeds up

• the reaction slows down

• the reaction moves to its 2nd stage

• the reaction stops

When does a reaction stop?

• When it wants to

• When both the limiting and excess reactants are gone

• When all the excess reactant has been consumed

• When all the limiting reactant has been consumed

What is the limiting reactant if 15 moles of NH₃  react  with 16 moles of NO?
4NH₃+6NO --> 5N₂ + 6H₂O

• NH₃

• NO

• N₂

• water

To determine the limiting reactant in a chemical reaction, one must know the

• amount of product formed

• available amount of one of the reactants

• available amount of each of each reactant

• speed of the reaction

When does a chemical reaction stop?

• When the lab is finished

• When the excess reactant is used up

• When the limiting reactant is used up

• Chemical reactions never stop

Use the equation 2 Al + 3 Cl₂ ---> 2 AlCl₃.  If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.

• AlCl3

• Cl2

• Al

Tags

NGSS.HS-PS1-7

In a reaction between 5 moles of hydrogen gas (H2) and 3 moles of oxygen gas (O2) to form water (H2O), which is the limiting reactant?

• Hydrogen gas (H2)

• Oxygen gas (O2)

• Water (H2O)

• None of the above

Tags

NGSS.HS-PS1-7

If you have 10 grams of reactant A and 15 grams of reactant B, and reactant A is the limiting reactant, what happens to reactant B?

• It is completely consumed

• It is partially consumed

• It is not consumed at all

• It forms a new product

In the reaction @@ ext{2Fe} + ext{3Cl}_2 ightarrow ext{2FeCl}_3@@, if you start with 4 moles of Fe and 6 moles of Cl2, which is the limiting reactant?

• Fe

• Cl2

• FeCl3

• None

Tags

NGSS.HS-PS1-7