Chemical Balancing

Balance this equation:
 2Li + Cl₂ -> LiCl

• 2Li + Cl₂ -> 4LiCl2

• 2Li + Cl₂ -> LiCl₂

• 2Li + Cl₂ -> 2LiCl

Tags

NGSS.MS-PS1-5

Is the following equation balanced or unbalanced ? 
Al + O₂ --> Al₂O₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5

_K + _Cl₂ →_KCl

• 2 K + 16 Cl₂ → 8 KCl

• 2 K + 1 Cl₂ → 2 KCl

• 3 K + 4 Cl₂ → 3 KCl

• 1 K + 1 Cl₂ →1 KCl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance this equation,            Al₂O₃ ---> Al + O₂ 

• Cannot be balanced

• 2Al₂O₃ ---> 2Al + 3O₂ 

• 2Al₂O₃ ---> 4Al + 3O₂ 

• 3Al₂O₃ ---> 2Al + O₂ 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance this equation:  H₂ + N₂ → NH₃

•  H₂ + 4N₂ → NH₃

•  H₂ + 3N₂ → 2NH₃

•  3H₂ + N₂ → 2NH₃

•  2H₂ + 2N₂ → 2NH₃

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Balance this reaction:

____ Na₃PO₄ + ____ KOH ---> ____ NaOH + ____ K₃PO₄

• 1,3,3,1

• 1,3,2,1

• 2,3,3,1

• 1,1,3,1

Tags

NGSS.MS-PS1-5

Balancing this reaction:

____ CH₄ + ____ O₂ ---> ___ CO₂ + ____ H₂O

• 2,1,3,1

• 1,2,1,2

• 1,2,2,1

• 2,1,1,2

Tags

NGSS.MS-PS1-5

This unbalanced equation represents a chemical reaction:

Pb(NO₃)₂ + NaI → NaNO₃ + PbI₂

What is the coefficient for NaI once the equation is balanced?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Balance the following chemical reaction: SnO₂ + H₂ --> Sn + H₂O

• 2 SnO₂ + 2 H₂ --> 2 Sn + 2 H₂O

• SnO₂ + 2 H₂ --> Sn + 2 H₂O

• 2 SnO₂ + 3 H₂ --> 1 Sn + 2 H₂O

• SnO₂ + H₂ --> Sn + H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

___C₃H₈ +___O₂ --> ___CO₂ + ___H₂O

• 1,5,3,4

• 2,10,6,8

• already balanced

• 1,5,5,4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5