Balancing Chemical Equations

Front

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

Back

2

Front

Which number should go in the blank?
Al(NO₃)₃ + _  NaOH -> Al(OH)₃ + 3 NaNO₃

Back

3

Front

How many HCl molecules do you need to balance this equation? Mg + __HCl ---> MgCl₂ + H₂

Back

2

Front

Balance this equation: _Al +_HCl --> _H₂ +_AlCl₃

Back

2,6,3,2

Front

Balance the following equation: Zn + HCl --> ZnCl₂ + H₂

Back

1,2,1,1

Front

Which equation is balanced?
Options:

PbO₂ + 2H₂

,

SO₂ + H₂0 --> H₂SO₄

,

2Na + 2H₂O --> 2NaOH + H₂

Back

2Na + 2H₂O --> 2NaOH + H₂

Front

What law governs the balancing of chemical equations?

Back

Law of Conservation of Matter/Mass

Front

What are the coefficients that would properly balance this equation?
__AgNO₃ + __H₂S --> __Ag₂S+ __HNO₃

Back

2,1 --> 1,2

Front

What are the coefficients that would properly balance this equation? __H₂ + __S --> __H₂S

Back

1,1 --> 1

Front

What are the coefficients that would properly balance this equation? __Al + __O₂--> __Al₂O₃

Back

4,3 --> 2