Limiting

Identify the limiting reagent when 6.00 moles HCl combines with 5.00 moles Mg to form MgCl₂.
 
1 Mg +  2 HCl --> 1 MgCl₂  +  1 H₂   
 

• Mg

• H₂

• MgCl₂

• HCl

Tags

NGSS.HS-PS1-7

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

• None

Tags

NGSS.HS-PS1-7

What is a limiting reactant?

• the reactant that determines how much product can be made

• the reactant that is in excess

• the product that you can make the most of

• the amount of reactants that react with each other

Tags

NGSS.HS-PS1-7

The limiting reactant

• slows the reaction down

• is used up first

• is the reactant that is left over

• controls the speed of the reaction

A limiting reactant is a reactant that.....

• runs out during a chemical reaction

• causes a reaction to stop

• determines the amount of products that can be made

• all of these

Fe + S --> FeS
If 7.62g Fe react with 8.67g S, what is the limiting reactant?

• Fe

• S

• FeS

• none 

Tags

NGSS.HS-PS1-7

When 6 moles of O₂ reacts with 12 moles of H₂ what is the limiting reactant? 12 H₂ + 6 O₂ --> 12 H₂O

• Oxygen

• H₂

• Water

• Neither, Ratios are perfect

Tags

NGSS.HS-PS1-7

In a chemical reaction, what does the term 'limiting reactant' refer to?

• The reactant that is completely consumed first, limiting the amount of product formed

• The reactant that is in excess and remains after the reaction

• The product that is formed in the greatest quantity

• The catalyst that speeds up the reaction

• NO

• O_2

• NO_2

• None

Tags

NGSS.HS-PS1-7

In the context of ecosystems, what does the term 'limiting factor' mean?

• A factor that causes population growth to decrease

• A factor that increases biodiversity

• A factor that has no effect on the ecosystem

• A factor that is always present in abundance

Tags

NGSS.HS-LS2-6