Balancing Equations in Chemistry

What are the coefficient used to balance the equation below?

__Ag₂O →__ Ag +___O₂

• 2,4,1

• 1,1,1

• 2,1,2

• 2,2,2

Tags

NGSS.MS-PS1-5

Balance this equation:

Sb₂S₃ + O₂ --> Sb + SO₂

• It is balanced

• Sb₂S₃ + 3O₂ --> 2Sb + 3SO₂

• Sb₂S₃ + O₂ --> 2Sb + SO₂

• I don't know...Oh well!

Tags

NGSS.MS-PS1-5

How many HCl molecules do you need to balance this equation? Mg + __HCl ---> MgCl2 + H2

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Balance the the following equation:

__Zn + __HCl -->__ZnCl₂ + __H₂

• 1,1,2,1

• 1,1,1,2

• 1,2,1,1

• 2,1,1,1

Tags

NGSS.MS-PS1-5

How many Silver (Ag) atoms are reactants in this equation?

• 4

• 2

• 3

• 0

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Balance this equation: MgCl₂ --> Mg₄+ Cl₂

• It's already balanced.

• 4MgCl₂ --> Mg₄+ 4Cl₂

• 4MgCl₂ --> Mg₄+ 5Cl₂

Tags

NGSS.MS-PS1-5

Balance this equation:

HgO --> 2Hg + O₂

• It is balanced

• 2HgO --> Hg + O₂

• 2HgO --> 2Hg + O₂

• I don't know...Oh well!

Tags

NGSS.MS-PS1-5

Balance this Equation:

____ Na + ____ Cl₂ → ____ NaCl₃

• 1, 2 → 2

• 2, 2 → 2

• 2, 3 → 2

• 3, 3 → 2

Tags

NGSS.MS-PS1-5

When balancing equations what does --> mean?

• subscript

• forward

• it is just an arrow

• yield

Which of the following is an unbalanced equation?

• CaCO₃ --> CaO + CO₂

• 2Zn + 2NaCl₂ --> 2ZnCl₂ + 2Na

• 2Na+ H₂O --> 2NaOH + H₂

• CS₂ + 2O₂ --> CO₂ + 2SO₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5