Chemical Reactions

Vocabulary

100

A process that changes a substance into one or more different substances.

What is a chemical reaction?

200

The substance(s) formed in a chemical reaction.

What is/are a product(s)?

300

The number placed in front of a chemical formula in a chemical equation to balance the reaction.

What is a coefficient?

400

The substance(s) that enter into a chemical reaction.

What is/are a reactant(s)?

500

A combination of chemical formulas and symbols that model a chemical reaction.

What is a chemical equation?

Types of Reactions

100

A single reactant breaks down into two or more products.

What is a decomposition reaction?

200

A fuel reacts with oxygen to produce carbon dioxide and water.

What is a combustion reaction?

300

Two compounds swap cations with each other.

What is a double-replacement reaction?

400

Two or more reactants combine to form a single, more complex product.

What is a synthesis reaction?

500

One element in a compound is replaced by another element.

What is a single-replacement reaction?

Writing & Balancing Equations

100

Potassium plus magnesium bromide reacts to form potassium bromide plus magnesium.

What is

2K + MgBr₂ → 2KBr + Mg

200

Magnesium reacts with nitrogen to produce magnesium nitride.

What is

3Mg + N₂ → Mg₃N₂

300

Silicon dioxide reacts with hydrogen fluoride to produce silicon tetrafluoride and water.

What is

SiO₂ + 4HF → SiF₄ + 2H₂O

400

Aluminum and oxygen react to produce aluminum oxide.

What is

4Al + 3O₂ → 2Al₂O₃

500

Lead reacts with iron (II) sulfate to produce iron and lead (IV) sulfate.

What is

Pb + 2FeSO₄ → 2Fe + Pb(SO₄)₂

Balancing & Types of Reactions

100

CH₄ + O₂ → CO₂ + H₂O

What is

CH₄ + 2O₂ → CO₂ + 2H₂O

and combustion?

200

Fe + Cl₂ → FeCl₃

What is 

2Fe + 3Cl₂ → 2FeCl₃

and synthesis?

300

Au₂S₃ + H₂ → Au + H₂S

What is

Au₂S₃ + 3H₂ → 2Au + 3H₂S

and single-replacement?

400

NaClO₃ → NaCl + O₂

What is

2NaClO₃ → 2NaCl + 3O₂

and decomposition?

500

BF₃ + Li₂SO₃ → B₂(SO₃)₃ + LiF

What is

2BF₃ + 3Li₂SO₃ → B₂(SO₃)₃ + 6LiF

and double-replacement?

Mixed

100

Chemical equations must be balanced to follow this.

What is the law of conservation of matter?

200

Three evidences of a chemical reaction.

What are: bubbles, precipitate, energy released, odor, temperature change, color change, composition change, and burning?

300

The elements and numbers of atoms in:

4NO₂

What are 4 nitrogen and 8 oxygen atoms?

400

Predict the products for the following:

Li + AgNO₃ →

What are

Ag + LiNO₃

500

The elements and number of atoms in:

2P₃O₂

What are 6 phosphorus and 4 oxygen atoms?