Balancing Chemical Equations

__Na + __Cl₂ --> __NaCl

• 1,1,2
• 2,1,2
• 2,1,1
• already balanced

Tags

NGSS.HS-PS1-7

__H₂O₂ --> __H₂O + __O₂

• already balanced
• 2,1,1
• 2,2,1
• 2,1,2

Tags

NGSS.HS-PS1-7

__NaClO₃ --> __NaCl + __O₂

• 2,2,2
• 2,2,3
• 3,2,2
• 1,2,3

Tags

NGSS.HS-PS1-7

__BF₃ + __Li₂SO₃ --> __B₂(SO₃)₃ + __LiF

• 2,3,1,3
• 2,3,1,6
• 4,4,2,12
• 3,3,1,9

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

__C₆H₁₂O₆ + __O₂ --> __H₂O + __CO₂

• 1,6,6,6
• already balanced
• 1,6,1,6
• 2,12,12,12

Tags

NGSS.HS-PS1-7

NGSS.HS-LS1-7

_AgNO₃ + _Cu →_Cu(NO₃)₂ + _Ag

• 2 AgNO₃ + 2 Cu → 3 Cu(NO₃)₂ + 1 Ag
• 2 AgNO₃ + 1 Cu → 1 Cu(NO₃)₂ + 2 Ag
• 1 AgNO₃ + 2 Cu → 2 Cu(NO₃)₂ + 1 Ag
• 3 AgNO₃ + 2 Cu → 3 Cu(NO₃)₂ + 2 Ag

Tags

NGSS.HS-PS1-7

Balance this equation:
MgCl₂ --> Mg₄+ Cl₂

• It's already balanced.
• 4MgCl₂ --> Mg₄+ 4Cl₂
• 4MgCl₂ --> Mg₄+ 5Cl₂

Tags

NGSS.HS-PS1-7

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__FeCl₃ + __Ca(OH)₂ --> __Fe(OH)₃ + __CaCl₂

• 4,3--> 2,1
• 3,2 --> 3,1
• 2,3 --> 2,2
• 2,3 --> 2,3

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

Balance the equation:
Si(OH)₄+NaBr--> SiBr₄+NaOH

• Si(OH)₄+2NaBr--> SiBr₄+NaOH
• Si(OH)₄+4NaBr--> SiBr₄+4NaOH
• Si(OH)₄+NaBr--> SiBr₄+4NaOH
• Si(OH)₄+2NaBr--> SiBr₄+2NaOH

Tags

NGSS.HS-PS1-7