AP Chemistry 4.5

Balance this equation:

____ Zn + _____HCl → _____ ZnCl₂ + _______H₂

• 1,2,1,2

• 2,1,1,2

• 1,2,1,1

• 1,3,1,2

Tags

NGSS.HS-PS1-7

____ Zn + _____HCl → _____ ZnCl₂ + _______H₂

If 70.50 g of Zn and 71.65 g of HCl are combined, what is the limiting reactant?

• Zn limits

• HCl limits

• ZnCl₂ limits

• H₂ limits

Tags

NGSS.HS-PS1-7

____ Zn + _____HCl → _____ ZnCl₂ + _______H₂

If 70.50 g of Zn and 71.65 g of HCl are combined, what is the maximum mass of zinc chloride that can be produced?

• 133.9 g ZnCl₂

• 131.8 g ZnCl₂

• 146.9 g ZnCl₂

• 267.83 g ZnCl₂

Tags

NGSS.HS-PS1-7

____ Zn + _____HCl → _____ ZnCl₂ + _______H₂

If the reaction is done in a lab and 125.6 g of zinc chloride are produced, what is the percent yield?

• 85.50%

• 93.80%

• 95.29%

• 46.90%

Tags

NGSS.HS-PS1-7

____ Zn + _____HCl → _____ ZnCl₂ + _______H₂

If 70.50 g of Zn and 71.65 g of HCl are combined, how many moles of the excess reactant are left over?

• 0.3251 mol H₂

• 0.9826 mol Zn

• 1.078 mol Zn

• 0.095 mol Zn

Tags

NGSS.HS-PS1-7

Balance this equation:

_____HCl + ____ Mg → _____ MgCl₂ + _______H₂

• 2,1,1,1

• 2,2,1,1

• 2,4,1,2

• 1,2,1,3

Tags

NGSS.HS-PS1-7

_____HCl + ____ Mg → _____ MgCl₂ + _______H₂

If 69.75 g of Mg and 70.25 g of HCl are combined, what is the limiting reactant?

• HCl limits

• Mg limits

• MgCl₂ limits

• H₂ limits

Tags

NGSS.HS-PS1-7

_____HCl + ____ Mg → _____ MgCl₂ + _______H₂

If 69.75 g of Mg and 70.25 g of HCl are combined, what is the maximum mass of magnesium chloride that can be produced?

• 273.2 g MgCl₂

• 91.72 g MgCl₂

• 183.4 g MgCl₂

• 136.6 g MgCl₂

Tags

NGSS.HS-PS1-7

_____HCl + ____ Mg → _____ MgCl₂ + _______H₂

If the reaction is done in a lab and 84.6 g of magnesium chloride is produced, what is the percent yield?

• 30.97%

• 46.13%

• 92.24%

• 61.93%

Tags

NGSS.HS-PS1-7

_____HCl + ____ Mg → _____ MgCl₂ + _______H₂

If 69.75 g of Mg and 70.25 g of HCl are combined, how many moles of the excess reactant are left over?

• 2.869 mol Mg

• 1.906 mol Mg

• 0.9634 mol HCl

• 1.927 mol HCl

Tags

NGSS.HS-PS1-7