Balancing chemical equations

Is the following equation balanced?

4Fe + 3O₂ ---> 2Fe₂O₃

• YES

• NO

Tags

NGSS.MS-PS1-5

Is the following equation balanced?

NaHCO₃ ---> Na₂CO₃ + H₂O + CO₂

• YES

• NO

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Is the following reaction balanced?

2CH₃OH + 3O₂ ---> 2CO₂ + 4H₂O

• YES

• NO

Tags

NGSS.MS-PS1-5

Which of the following equations are correctly balanced?

• 12CO₂ + H₂O ---> C₆H₁₂O₆ + O₂

• CO₂ + H₂O ---> 3C₆H₁₂O₆ + O₂

• CO₂ + 9H₂O ---> C₆H₁₂O₆ + O₂

• 6CO₂ + 6H₂O ---> C₆H₁₂O₆ + 6O₂

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Balance this equation:

H₂ + Cl₂ ---> HCl

• It is balanced.

• H₂ + Cl₂ ---> 2HCl

• 3H₂ + Cl₂ ---> 6HCl

• H₂ + 3Cl₂ ---> 6HCl

Tags

NGSS.MS-PS1-5

Balanced this equation:

Sb₂S₃ + O₂ ---> Sb + SO₂

• It is balanced.

• Sb₂S₃ + O₂ ---> 2Sb + SO₂

• Sb₂S₃ + 3O₂ ---> 2Sb + 3SO₂

• 3Sb₂S₃ + 3O₂ ---> 2Sb + SO₂

Tags

NGSS.MS-PS1-5

Which number should go in the blank?
_ H₂ + O₂ -> 2 H₂O

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which number should go in the blank?
2 Na+ _ Cl₂ -> 2 NaCl

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which number should go in the blank?
Mn + _ HNO₃ → Mn(NO₃)₂ + H₂

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Balance the following equation:

___ Mg+ ___ O₂→___ MgO

• 1, 1, 3

• 2, 1, 2

• 1, 2, 1

• 2, 2, 2

Tags

NGSS.MS-PS1-5