Limiting Reactants

It is the reactant that produces a lesser amount of product. (a)  

• Excess Reactant
• Percent Yield
• Limiting Reactant
• Co-Factor

What is the calculation of the relationship of reactant and product in chemical equation. (a)  

• Molality
• Stoichiometry
• Balancing of Equation
• Percent Yiels

Tags

NGSS.HS-PS1-7

It is the maximum amount of product you would expect from a reaction based on the amount of limiting reagent (a)  

• Theoretical yield
• Limiting Reactant
• Excess Reactant
• Product Difference

They are reactants that are not used up when the reaction is finished. (a)  

• Excess Reagents
• Solute
• Limiting Reagents
• Solution

It deals with the process that involves rearrangement of the molecular or ionic structure of a substance to form a new substance or product. (a)  

• Chemical Equilibrium
• Chemical Reaction
• Chemical Su=ymbols
• Stoichiometry

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the expected value for percent yield?

• -1

• 0-100

• above 100

• Unknown

Tags

NGSS.HS-PS1-6

Which of the following equation below is balanced?

• Al+3O₂ --> 2Al₂O₃

• 4Al+O₂ --> 2Al₂O₃

• 4Al+3O₂ --> Al₂O₃

• 4Al+3O₂ --> 2Al₂O₃

Tags

NGSS.HS-PS1-7

In the equation Mg + HCl ---> MgCl2 + H2, how many molecules of hydrogen do we need to make hydrogen balanced?

• 3

• 6

• 2

• 7

Tags

NGSS.HS-PS1-7

In the equation Mg + O_2(g) ---> MgO, how many molecules of Mg on the reactant side do we need to make our equation balance?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Use the following balanced equation: 2C₂H₆ + 7O₂ ---> 4CO₂ + 6H₂O

If 15 g of C₂H₆ react with 45 g of O₂, how many grams of water will be produced?

• 22 g H₂O

• 23 g H₂O

• 27 g H₂O

• 28 g H₂O

Tags

NGSS.HS-PS1-7