Balancing and Classifying Reactions

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

• Coefficient

• Products

• Reactants

• Subscripts

Tags

NGSS.HS-PS1-7

Classify
Zn + H₂S → ZnS + H₂

• synthesis

• combustion

• single replacement

• double replacement

Tags

NGSS.MS-PS1-5

Classify
CH₄ + O₂ → CO₂ + H₂O 

• single replacement

• double replacement

• synthesis

• combustion

Classify
FeS + HCl → H₂S + FeCl₂

• synthesis

• combustion

• single replacement

• double replacement

Classify
Fe + O₂ → Fe₂O₃

• synthesis

• decomposition

• double replacement 

• single replacement

In a chemical equation, is it true that -

• the reactant side and product side can have different numbers of atoms for each element

• there can be different elements on the reactant side and the product side

• an element or compound must be accompanied by a phase change

• the coefficients indicate the number of molecules of each reactant used and the number of molecules of each product made

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

AB + CD →AD + CB

• Double Replacement

• Single Replacement

• Synthesis

• Decomposition

RbNO₃ + BeF₂ --> Be(NO₃)₂ + 2 RbF

• single displacement

• double displacment

• decomposition

• synthesis

AgNO₃ + Cu --> Cu(NO₃)₂ + 2 Ag 

• single displacement

• double displacement

• decomposition

• synthesis

C + O₂ → CO₂

• Synthesis Reaction

• Decomposition Reaction

• Single Displacement Reaction

• Double Displacement Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5