Challenge III Chem Review Chapter 7 & 8

What Element Am I? (Used in Chapter 8)

100

Cu

Copper

200

Ba

Barium

300

Mg

Magnesium

400

Ag

Silver

500

Ga

Gallium

Name me! Polyatomic Ion (Used in Chapter 8)

100

NH₄⁺

Ammonium

200

OH^-

Hydroxide

300

CN^-

Cyanide

400

SO₄^-2

Sulfate

500

CO₃^-2

Carbonate

Name that Reaction Type (Chapter 7)

100

A reaction that changes a compound into its constituent elements

Decomposition reaction

200

A reaction in which O2 is added to a compound containing C & H, producing CO2 & H2O

Complete combustion

300

A reaction that starts with 2 or more elements and produces 1 compound

Formation reaction

400

A reaction in which O2 is added to a compound containing C & H, producing CO & H2O

Incomplete combustion

500

C₂H₆O -> 2C+H₂+O₂ is an example of what kind of reaction?

Decomposition!

Balance Me! (Chapter 8)

100

NH₃ + H₂SO₄ → (NH₄)₂SO₄

2NH₃ + H₂SO₄ → (NH₄)₂SO₄

200

H₂ + N₂ → NH₃

[3H₂ + N₂ → 2NH₃]

300

KAgC₂N₂ + Zn → Ag + ZnC₂N₂ + KCN

2KAgC₂N₂ + Zn → 2Ag + ZnC₂N₂ + 2KCN]

400

C₆H₁₂O₆ + O₂ → CO₂ + H₂O

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O]

500

C₈C₁₈ + O₂ → CO₂ + H₂O

2C₈C₁₈ + 25O₂ → 16CO₂ + 18H₂O]

Molecular Weight - in amu or g/mole (Ch 7)

100

GaCl₃

[176.2 amu or g/mole]

200

NaSO₄

[142.1 amu or g/mole]

300

Ba(OH)₂

[137.3 amu or g/mole]

400

sugar,  - C₆H₁₂O₆

[180.1 amu or g/mole]

500

Al(NO₃)₃

[213.0 amu or g/mole]