Balancing Chemical Equations

Front

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

Back

2

Front

Balance this equation:

CF₄ + Br₂ → CBr₄ + F₂

Back

1,2,1,2

Front

Total number of atoms in 5Na₃PO₄

Back

40

Front

What is the little number after an element in a chemical equation called? Example: H₂

Back

Subscript

Front

Which of the following equations are correctly balanced?

12CO₂ +H₂O --> C₆H₁₂O₆ + O₂

,

CO₂ + 9H₂O --> C₆H₁₂O₆ + O₂

,

CO₂ + H₂O --> 3C₆H₁₂O₆ + O₂

,

6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

Back

6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

Front

What's unbalanced about this equation? Al + O₂ --> Al₂O₃

Back

Both oxygen and aluminum

Front

What is wrong with how this student balanced the equation? Original equation: Ag + O₂ ---> Ag₂O Solution: Ag + O₂ ---> 2Ag₂O

Back

The silver (Ag) still isn't balanced.