Chemistry Exam Review

Naming Compounds

100

Au₂S₃

Gold (III) Sulfide 

200

CO

Carbon Monoxide

300

H₂SO₄

Sulfuric Acid

400

NaOH

Sodium Hydroxide 

500

Hg₃(PO₄)₂

Mercury (II) Phosphate

Writing Formulas

100

Dichlorine Tetroxide

Cl₂O₄

200

HF(Aq)

Hydrofluoric Acid

300

Ammonium Nitrate

NH₄NO₃

400

Mercury (II) Hydroxide

Hg(OH)₂

500

Silicon (IV) Oxide

SiO₂

Conversion factors

100

The mass in grams of 0.521 mol of nickel.

30.6 g Ni

200

The mass in grams of 62.7 moles of copper (II) sulfate. (don't forget sig figs) 

1.00 x10⁴ g CuSO₄

300

The number of moles in 2.01 g of sodium thiosulfate. (Na₂S₂O₃)

0.0127 mol Na₂S₂O₃

400

Number of moles in 0.00426 kg of aluminum.

0.158 mol Al

500

The number of water molecules there is 15.0 g of water. 

5.01 x 10²³ molecules of water

Balancing Equations

100

KClO₃ --> KCl + O₃

KClO₃ --> KCl + O₃

200

(NH₄)₂SO₄ + Ba(NO₃)₂ --> BaSO₄ + NH₄NO₃

(NH₄)₂ + Ba(NO₃)₂ --> BaSO₄ + 2NH₄NO₃

300

Al + NiBr₂ --> AlBr₃ + Ni

2Al + 3NiBr₃ --> 2AlBr₃ + 3Ni

400

Al + O₂ --> Al₂O₃

4Al + 3O₂ --> 2Al₂O₃

500

C₃H₈ + O₂  --> CO₂ + H₂O

C₃H₈ + 5O₂  --> 3CO₂ + 4H₂O

Classifying Reactions

100

KClO₃ --> KCl + O₃   (there are two answers)

Decomposition and redox

200

(NH₄)₂SO_{4 (Aq)} + Ba(NO₃)_{2 (Aq)} --> BaSO_{4 (s)} + NH₄NO_{3 (Aq)} (There are two answers)

Precipitate and Double displacement  

300

Al _(s) + NiBr_{3 (aq)} --> AlBr_{3 (aq)} + Ni _(s)

Single Replacement and Redox

400

HCl _(aq) + NaOH _(aq) --> NaCl _(aq) + H₂0 _(l) 

Acid-Base and Double replacement 

500

C₃H_{8 (g)} + O_{2 (g)} --> CO_{2 (g) +} H₂O _(g)

Combustion and Redox