Balancing Chemical Equations

How many atoms of carbon (C) are in C₆H₁₂O₆?

• 3
• 6
• 12
• 24

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

• 1
• 12
• 6

How many atoms of Hydrogen are in the compound 4H₂O?

• 6
• 8
• 2
• 4

Looking at the diagram, Is this equation balanced?

• yes
• no
• Not enough information

Is the equation balanced?: 2H₂O + O₂ --> 4MgO + 3Fe

• yes

• no

The coefficient in 3H₂O is

• 6

• 5

• 2

• 3

Balance the following equation:

___ Mg+ ___ O₂→___ MgO

• 1, 1, 3

• 2, 1, 2

• 1, 2, 1

• 2, 2, 2

Balance the following equation:

___ SeCl₆+ ___ O₂→___ SeO_{2+____}Cl₂

• 1, 1, 1, 3

• 2, 1, 2, 1

• 1, 2, 1, 2

• 2, 2, 2, 4

Balance this equation
_Zn+_HCl-->_ZnCl₂ +_H₂

• 1,1,2,1
• 1,1,1,2
• 1,2,1,1
• 2,1,1,1

Balance this equation
_N₂ + _H₂ --> _NH₃

• 1,2,3
• 1,3,2
• 1,1,2
• 2,1,1