types of reactions

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

• Synthesis
• Decomposition
• Single Replacement Replacement
• Double Replacement Replacement

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

• Decomposition
• Combustion
• Synthesis
• Single Replacement 

One reactant into several products.

• Decomposition
• Synthesis
• Combustion
• Single Replacement

Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 

• Decomposition
• Synthesis
• Combustion
• Single Replacement

C₄H₁₂ + O₂ → CO₂ + H₂O

• Synthesis
• Combustion
• Single Replacement
• Double Replacement

3KOH + H₃PO₄ --> K₃PO₄ + 3H₂O

• Synthesis

• Neutralization

• Single displacement

• Double displacement

3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al

• Synthesis
• Decomposition
• Single Displacement
• Double Displacement

Fe + H₂SO₄ --> Fe₂(SO₄)₃ + H₂

• Synthesis (combination)
• Decomposition
• Single replacement
• Combustion

When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced

• charge
• subscript
• random number
• coefficient

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1
• 2
• 3
• 4