Chemical Classification

Classify
HI → H₂ + I₂

• synthesis
• decomposition
• single replacement
• double replacement

Classify
Zn + H₂S → ZnS + H₂

• synthesis
• combustion
• single replacement
• double replacement

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-PS1-5

The reactants are on the left side of the chemical equation.

• True
• False

AB + CD →AD + CB

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition

Identify this type of reaction,
Cl₂ + 2KI _-->  I₂ + 2KCl

• Synthesis
• Single displacement
• Double displacement
• Decomposition

2 C₅H₅ + Fe --> Fe(C₅H₅)₂ 

• single displacement
• double displacement
• decomposition
• synthesis