Balance Chemical Equation

Which is the correct coefficient to balance this equation, NH₄NO₂ → N₂ + H₂O?

• 1,1,2

• 1,3,3

• 3,2,1

• 1,3,2

Tags

NGSS.HS-PS1-7

Balance this equation

_Al +_HCl --> _H₂ +_AlCl₃

• 2,6,3,2

• it's already balanced

• 4,12,3,4

• 2,1,4,5

Tags

NGSS.HS-PS1-7

What are the coefficients that would properly balance this equation?

• 4,1 --> 2

• 4,3 --> 4

• 3,4 --> 1

• 4,3 --> 2

Tags

NGSS.HS-PS1-7

What coefficient should go in the blank space to balance the chemical equation? 
2Al  +____  HCl   →    2AlCl₃  +  3H2

• 2

• 4

• 3

• 6

Tags

NGSS.MS-PS1-5

Balance this equation

_ C₅H₁₂ + _ O₂ → _ CO₂ + _ H₂O

Note: Write the coefficient "1" to avoid ambiguity

Tags

NGSS.MS-PS1-5

How do you write the balanced equation of burned propane (C₃H₈) in the presence of oxygen to produce water and carbon dioxide?

• C₃H₈ + O₂ → H₂O + CO₂

• C₃H₈ + O₂ → 4H₂O + 3CO₂

• C₃H₈ + 5O₂ → 4H₂O + 3CO₂

• C₃H₈ + 3O₂ → 2H₂O + 3CO₂

Tags

NGSS.HS-PS1-7

Fill in the blanks with coefficient:
PCl₅+_ H₂O→_ HCl+H₃PO₄

• 4, 5

• 1, 6

• 3, 8

• 2,2

Tags

NGSS.HS-PS1-7

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Balance this equation

_ S + _ O₃ → _ SO₂

Note: Write the coefficient "1" to avoid ambiguity

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