Chemical reactions review

compound ---> element + element

• synthesis

• decomposition

• combustion

• single replacement

What reaction has the following general formula:

A + CD --> C + AD

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

What reaction has the following general formula:

A + B --> AB

• Synthesis or Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

What reaction has the following general formula:

AB + CD --> CB + AD

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

What are the smaller numbers that you CANNOT change in a chemical equation? 

• Coefficient
• Products
• Reactants
• Subscript

What are the larger numbers that you CAN CHANGE in a chemical equation? 

• Coefficient 
• Products
• Reactants
• Subscripts

What law governs the balancing of chemical equations? 

• Law of Energy
• Law of Conservation of Matter/Mass
• Law of Gravity
• Law of Matter Movement 

Tags

NGSS.HS-PS1-7

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

• 1
• 2
• 3
• 4