Balancing Equations

KNO₃ --> KNO₂ + O₂
What coefficients are needed to balance the reaction?

• 2, 2, 1

• 2, 3, 2

• 1, 2, 2

• 1, 3, 1

Tags

NGSS.MS-PS1-5

Fill in the blanks with coefficient:

PCl₅+_ H₂O→_ HCl+H₃PO₄

• 4, 5

• 1, 6

• 3, 8

• 2,2

Tags

NGSS.MS-PS1-5

Which equation is balanced?

• PbO₂ + 2H₂--> H₂SO₄

• SO₂ + H₂0 --> H₂SO₄

• 2Na + 2H₂O --> 2NaOH + H₂

• 2Na + 2H₂O --> 2NaOH + H

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Balance this equation.

__SnO₂ +__H₂-->__Sn +__H₂O

• 1,1,2,1

• 1,2,1,1

• 1,2,1,2

• 1,2,2,1

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Balance this equation.

__CF₄ + __Br₂ --> __CBr₄ + __F₂

• 2,1,2,1

• 1,2,2,1

• 1,2,1,2

• 2,2,2,2

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Balance this equation

__Al +__HCl -->__H₂ +__AlCl₃

• 2, 6, 3, 2

• it is already balanced

• 4, 12, 3, 4

• 2, 1, 4, 5

Tags

NGSS.MS-PS1-5

Balance this equation.

__CH₄ + __O₂ --> __CO₂ + __H₂O

• 1,2,1,1

• 2,1,2,1

• 1,2,1,2

• 0,2,0,2

Tags

NGSS.MS-PS1-5

Balance this 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

NGSS.MS-PS1-2

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.

__Mg + __Cl₂ --> __MgCl₂

• 1, 2,1

• already balanced

• 2,1,1

• 1,1,2

Tags

NGSS.MS-PS1-5