Balanced/Unbalanced Equations

In this image, the information in red is called the_______.

• Products
• Reactants
• Chemical Subscript
• Ingredients

In this image, the information to the right of the arrow (in black) is called the_______.

• Product
• Reactant
• Chemical Subscript
• Final chemical

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.
• Matter can only be lost in a chemical reaction.
• Matter can only be gained in a chemical reaction.
• Matter can be gained and lost in a chemical reaction. 

How many ELEMENTS are in the compound H₂O

• 1
• 2
• 3
• 4

Balance this equation,            Al₂O₃ ---> Al + O₂ 

• Cannot be balanced
• 2Al₂O₃ ---> 2Al + 3O₂ 
• 2Al₂O₃ ---> 4Al + 3O₂ 
• 3Al₂O₃ ---> 2Al + O₂ 

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂ --> 2Al₂ O₃

• 2
• 6
• 1
• 4

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

• Balanced
• Not Balanced

CO₂ + H₂O → C₆H₁₂O₆ + 6H₂O₂

• Balanced
• Not Balanced

2 AgI + Na₂S → Ag₂S + 2 NaI

• Balanced
• Not Balanced

4AgI + Na₂S → AgS + 3NaI

• Balanced
• Not Balanced