Chemical Bonds and Reactions

Types of Bonds

100

What type of bond forms between metals and nonmetals?

Ionic Bond

200

What type of bond would form between Chlorine, a nonmetal, and Oxygen, another nonmetal?

Covalent Bond

300

What type of bond does Al₂O₃ have?

Ionic bond. Aluminum is a metal, while oxygen is a nonmetal.

400

A cation is a _____ ion, while an anion is a _____ ion.

Cation = Positive (+)

Anion = Negative (-)

500

What type of bond holds together polyatomic ions, like NO₃^-?

Covalent

(Polyatomic ions have charges that allow them to participate in ionic bonds with atoms of the opposite charge, but the polyatomic ion itself is held together by covalent bonds)

Names and Formulas

100

What is the name for CO₂?

Carbon Dioxide

200

What is the formula for Dinitrogen Trioxide?

N₂O₃?

300

What is the name of Al₂O₃?

Aluminum Oxide

400

What is the formula for Copper (II) Chloride?

CuCl₂

500

Ca is Calcium, and CO₃^2- is the polyatomic ion known as Carbonate.

What is the formula for Calcium Carbonate?

CaCO₃

Balancing Equations

100

Balance this equation:

___ N₂ + ___ H₂ --> ___NH₃

1N₂ + 3H₂ --> 2NH₃

200

Balance this equation:

___Na + ___H₂O = ___NaOH + ___H₂

2Na + 2H₂O = 2NaOH + 1H₂

300

Balance this equation:

___NaBr + ___Cl₂ --> ___NaCl + ___Br₂

2NaBr + 1Cl₂ --> 2NaCl + 1Br₂

400

Balance this equation:

___SeCl₆ + ___O₂ --> ___SeO₂ + ___Cl₂

1SeCl₆ + 1O₂ --> 1SeO₂ + 3Cl₂

500

Balance this equation:

___Fe + ___O₂ --> ___Fe₂O₃

4Fe + 3O₂ --> 2Fe₂O₃

Reaction Types

100

What kind of reaction is this:

AB --> A + B

Decomposition

200

What kind of reaction is this:

AB + C --> A + BC

Single Replacement

300

What kind of reaction is this:

4Fe + 3O₂ --> 2Fe₂O₃

Synthesis

400

What type of bond is this?

SiO₂ + 4HF --> SiF₄ + 2H₂O

Double Replacement

500

A reaction between pure sodium and water releases a violent explosion. Is this reaction endothermic or exothermic?

Exothermic