Balancing, Identifying, Activity Series, Solubilty Remediation

The following is what type of reaction:
PbCl₂ + AgNO₃ → Pb(NO₃)₂ + AgCl

• Combination/Synthesis

• Decomposition
• Single Displacement

• Double Displacement

The following is what type of reaction:
NH₃ + HCl  → NH₄Cl

• Combination/Synthesis

• Decomposition
• Single Displacement

• Double Displacement

What type of chemical reaction is this?
Al(OH)₃ → Al₂O₃  + H₂O

• Decomposition
• Combustion
• Combination/Synthesis

• Single Displacement 

3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al

• Synthesis
• Decomposition
• Single Displacement
• Double Displacement

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

• the product is doubled
• the product is half the mass of the reactants
• the mass is the same
• the mass changes depending on the reaction

Which option is correctly balanced?

• Fe + H₂O --> Fe₃O₄ + H₂

• 3 Fe + H₂O --> Fe₃O₄ + H₂

• 3 Fe + 4 H₂O --> Fe₃O₄ + 4 H₂

• 3 Fe + 2 H₂O --> Fe₃O₄ + H₂

Which Option is Correctly Balanced?

• Hg + O₂ --> Hg₂O₂

• 2 Hg + 2O₂ --> Hg₂O₂

• 2 Hg + O₂ --> Hg₂O₂

• Hg + 2 O₂ --> Hg₂O₂

What are the coefficients that will balance the skeleton equation below?

__Na + __F₂ → __NaF

• 1, 2, 1

• 2, 1, 2

• 1,1,1

• 2,2,2

What are the coefficients that will balance the skeleton equation below?

__Na + __MgF₂ → __NaF + __Mg

• 2,1,1,2

• 1,2,1,2,

• 2, 1, 2, 1

• 1,2,2,1

What are the coefficients that will balance the skeleton equation below?

__Sn + __HF → __SnF₂ + __H₂

• 2,1,1,2

• 1, 2, 1, 1

• 2,1,2,1

• 1,2,1,2