Balancing Equations

1,1,1

__CaO + __H₂O → __Ca(OH)₂

2, 1, 2

__Na + __F₂ → __NaF

2, 1, 2

__K + __I₂ → __KI

1,1,1

__MgO + __SO₃ → __MgSO₄

1,1,1

__C + __O₂ --> __CO₂

1, 3, 2, 3

__Al₂(SO₄)₃ + __Ca(OH)₂ → __Al(OH)₃ + __CaSO₄

2, 1, 2, 1

__Na + __MgF₂ → __NaF + __Mg

1, 1, 2, 1

__BaCl₂ + __Na₂SO₄ → __NaCl + __BaSO₄

2, 1, 2, 1

__LiCl + __Mg(NO₃)₂ → __LiNO₃ + __MgCl₂

3, 2, 2, 3

__Al + __Cu(NO₃)₂ → __Cu + __Al(NO₃)₃

1,1,1

__Mg + __Cl₂ → __MgCl₂

2, 1, 2

__CO + __O₂ → __CO₂

1, 2, 1, 1

__Cu + __HCl → __CuCl₂ + __H₂

2, 1, 2

__Mg + __O₂ → __MgO

1, 2, 1, 1

__Sn + __HF → __SnF₂ + __H₂

1, 2, 1, 1

__Mg + __HCl → __MgCl₂ + __H₂

1,1,1

__C + __O₂ → __CO₂

4, 3, 2

__Fe +__O₂ → __Fe₂O₃

1, 3, 1, 2

__CS₂ + __O₂ → __CO₂ + __SO₂

2, 3, 2, 2

__MgS + __O₂ → __MgO + __SO₂

2, 1, 1, 1

__NaOH + __CO₂ → __Na₂CO₃ + __H₂O

1, 2, 1, 1

__Mg + __HF → __MgF₂ + __H₂

1, 1, 2

__N₂ + __O₂ → __NO

2, 1, 2

__H₂ + __O₂ →__H₂O

2, 3, 2

__Al + __Cl₂ → __AlCl₃

3, 2, 3, 2

__Mg + __AlCl₃ → __MgCl₂ +__Al

2, 1, 2

__SO₂ + __O₂ → __SO₃

2, 2, 2, 1

__K + __H₂O → __KOH + __H₂

1,1,1

__Cu +__Cl₂ → __CuCl₂

4, 3, 2

__Al + __O₂ → __Al₂O₃

Chemical Formula

a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound

Chemical Equation

A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

Reactants

Elements or compounds that enter into a chemical reaction.

Products

The elements or compounds produced by a chemical reaction.

Coefficients

The numbers that appear before the formulas

Subscripts

numbers written below the line that tell how many atoms of a given type are in a compound.

Balanced Equation

a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element

The Law of Conservation of Mass

The principle that the total amount of matter is constant during any physical or chemical change (matter is neither created nor destroyed during these types of changes).

Decomposition

AB →A + B

decomposition reaction

chemical reaction in which one compound breaks up into 2 or more smaller compounds or elements

synthesis (direct combination) reaction

two or more substances combine to form another substance

synthesis (direct combination) reaction

A + B → AB

combustion reaction

a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light

(hydrocarbon) combustion reaction

CH(any hydrocarbon) + O₂ → CO₂ + H₂O

double replacement (displacement) reaction

chemical reaction in which atoms or ions from 2 different compounds replace each other

double replacement (displacement) reaction

AB + CD → AD + CB

single replacement (displacement) reaction

a chemical reaction in which one element takes the place of another element in a compound

single replacement (displacement) reaction

AB + C → A + BC or AB + C → AC