Chemical Reactions/ Equations

How many atoms of carbon are in C₆H₁₂O₆?

• 3

• 6

• 12

• 24

How many Aluminum are in Al₂O₃?

• 3
• 2
• 5

Which of the following shows the correct way to balance the chemical equation?
Fe + O₂ -> Fe₂O₃

• 4Fe + 3O₂ -> 2Fe₂O₃
• 2 Fe + 3O₂ -> Fe₂O₆
• 4 Fe + O₆ -> 2Fe₂O₃
• None of the options are correctly balanced.

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

• 1
• 2
• 3
• 4

Which is the Law of Conservation of Matter?

• matter cannot be created or destroyed, it only rearranges

• matter can be created but it cannot be destroyed, it never rearranges

• matter can be destroyed but it cannot be created, it usually just rearranges

• matter is an unproven theory created by Hans Geiger

Combining substances to form a new substance

• Displacement
• Synthesis
• Decomposition
• Oxidation

Breaking down a substance into simpler substances

• Displacement
• Synthesis
• Decomposition
• Oxidation

What type of reaction is the equation C + O₂ → CO₂?

• Synthesis Reaction
• Decomposition Reaction
• Single Displacement Reaction
• Double Displacement Reaction

What type of reaction is the equation 2NaCl →2Na +Cl₂?

• Synthesis Reaction
• Decomposition Reaction
• Single Displacement Reaction
• Double Displacement Reaction

Cu + 2Ag(NO₃) → 2Ag + Cu(NO₃)

• Synthesis Reaction
• Decomposition Reaction
• Single Displacement Reaction
• Double Displacement Reaction