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 name of arrow in the chemical equation. 

Fe + S → FeS

What is a yield sign? 

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

K+Br₂→KBr

2K+Br₂→2KBr

400

Mg+N₂→Mg₃N₂

3Mg+N₂→Mg₃N₂

500

Cu+O₂→CuO

2Cu+O₂→2CuO₂

Balancing Chemical Reactions 2

100

C+O₂→CO₂

C+O₂→CO₂

200

H₂+N₂→NH₃

3H₂+N₂→2NH₃

300

Ca+O₂→CaO

2Ca+O₂→2CaO₂

400

H₂+Cl₂→HCl

H₂+Cl₂→2HCl

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

2H₂ + O₂ → 2H₂O

Shows how many atoms the element already has. 

What are subscripts?

400

2H₂ + O₂ → 2H₂O

Shows how many molecules or atoms are needed. 

What is a coefficient? 

500

The products in this equation.

Fe + S → FeS

What is Iron Sulfide?