Balancing chemical equations

Front

Law of Conservation of Mass

Back

It states that matter cannot be created or destroyed.

Front

Coefficient

Back

The large number in front of a chemical formula.

Front

N₂+O₂--> _NO

Back

2

Front

How many Sodium (Na) atoms are in 6NaCl?

Back

6

Front

How many Hydrogen atoms are in 4H₂O?

Back

8

Front

How many Mn atoms are found in 3Cr(MnO₄)₆?

Back

18

Front

Which problem is balanced?
Options: PbO₂ + 2H₂, SO₂ + H₂0 --> H₂SO₄, 2Na + 2H₂O --> 2NaOH + H₂

Back

2Na + 2H₂O --> 2NaOH + H₂

Front

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

Back

2

Front

Is this balanced?
Al + O₂ → 2Al₂O₃

Back

No

Front

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

Back

2,6,3,2