Types of Chemical Reactions & Balancing

Chemical Reactions

100

The name for the elements on the left side of the equation. 

Fe + S → FeS

What are reactants? 

200

The name for the elements on the right side of the equation. 

Fe + S → FeS

What are products? 

300

The numbers below the elements in a chemical equation. 

2H₂ + O₂ → 2H₂O

What are subscripts?

400

The numbers in front of the elements in a chemical equation. 

2H₂ + O₂ → 2H₂O

What are coefficients? 

500

The arrow in the chemical equation can mean

Fe + S → FeS

What is yields, produces, creates

Types of Chemical Reactions

100

2H₂ (g) + O₂ (g) → 2H₂O (l)

What is synthesis? 

200

CaCO₃ (s) → CaO (s) + CO₂ (g)

What is decomposition?

300

Zn (s) + 2HCl (aq) → ZnCl₂ (aq) + H₂ (g)

What is single replacement? 

400

AgNO₃ (aq) + NaCl (aq) → AgCl (s) + NaNO₃ (aq)

What is double replacement?

500

C₃H₈ (g) + 5O₂ (g) → 3CO₂ (g) + 4H₂O (l)

What is combustion?

Balancing Chemical Equations

100

H₂+O→H₂O

2H₂+O₂→2H₂O

200

Na+Cl₂→NaCl

2Na+Cl₂→2NaCl

300

___AlCl3    +    ___H2O    →    ___Al(OH)3    +    ___HCl

AlCl3    +    3H2O    →    Al(OH)3    +    3HCl

400

___Fe(NO3)3    +    ___MgO    →    ___Fe2O3    +    ___Mg(NO3)2

2Fe(NO3)3    +    3MgO    →   Fe2O3    +    3Mg(NO3)2

500

___C8H18    +    ___O2    →    ___CO2    +    ___H2O

2C8H18    +  25O2    →  16CO2    +    18H2O

Balancing Chemical Reactions 2

100

C+O₂→CO₂

C+O₂→CO₂

200

H₂+N₂→NH₃

3H₂+N₂→2NH₃

300

___C5H12    +    ___O2    →    ___CO2    +    ___H2O

C5H12    +    8O2    →    5CO2    +   6H2O

400

___Cu3(PO4)2    +    ___Na2SO4    →    ___Na3PO4    +    ___CuSO4

1Cu3(PO4)2    +    3Na2SO4    →    2Na3PO4    +    3CuSO4

500

P+O₂→P₂O₅

4P+5O₂→2P₂O5

Chemical Reactions 2

100

The reactants in this equation. 

Fe + S → FeS

What are Iron and Sulfur? 

200

The yield sign in a chemical reaction. 

2H₂ + O₂ → 2H₂O

What shows a chemical reaction has taken place? 

300

The products of most combustion reactions

carbon dioxide and water

400

2H₂ + O₂ → 2H₂O

Shows how many molecules or atoms are needed. 

What is a coefficient? 

500

The products in this equation.

___Cu3(PO4)2    +    ___Na2SO4    →    ___Na3PO4    +    ___CuSO4

What is sodium phosphate and copper (II) sulfate