Chemistry Unit 2 Review

Naming Compounds

100

Give the name for KNO₃

Potassium Nitrate

200

Give the name for N₂O

Dinitrogen Monoxide

300

Name the compound MgSO₄

Magnesium Sulfate

400

Give the name for the compound Sn₃(PO₄)₂

Tin (II) Phosphate

500

Name the compound HCN

Hydrogen Cyanide

or 

Cyanic Acid

Writing Formulas

100

Write the formula for Xenon Hexafluoride

XeF₆

200

Write the formula for Nitrogen Phosphate

NPO₄

300

What is the charge on copper in Cu(NO₃)₃ ?

+3

400

Give the formula for Iron (III) Oxide

Fe₂O₃

500

Give the formula for the compound Ammonium Acetate

NH₄C₂H₃O₂

Chemical Reactions

100

What type of reaction is shown?

H₂ (g) + O₂ (g) --> H₂O (l) 

combination or synthesis

200

What are the products of the decomposition of Hydrogen Peroxide? Include their states!

oxygen gas and liquid water

300

Write a chemical equation for the following (include states!):

Solid ammonium nitrate decomposes to form nitrogen gas and gaseous water

NH₄NO₃ (s)  --> N₂ (g) + H₂O (g)

400

Write the reaction for the following (include states!):

Solid calcium carbonate reacts with aqueous hydrochloric acid (HCl) to produce carbon dioxide gas, liquid water and aqueous calcium chloride.

CaCO₃ (s)  +  HCl (aq)  🡪   CO₂ (g)   +   H₂O (l)   +  CaCl₂ (aq)

500

Write the formulas of the products for the double displacement reaction that occurs when Lead Chloride is added to Potassium Sulfate

PbSO₄    +   KCl

Moles

100

How many particles are in a mole?

6.022 x 10²³ particles

200

How many grams of Sodium are in one mole of Sodium?

22.99 grams of Sodium

300

Find the molar mass of Calcium Carbonate. Include units!

100.09 g/mol

400

Which has a greater molar mass, Tin (II) Sulfate or Iron (III) Sulfate?

Tin (II) Sulfate

500

What is the percent composition by mass of Oxygen in Lithium Oxide?

54%

Reaction Ratios

100

Balance the following equation:

HgO  →        Hg   +       O₂

2HgO  →        2Hg   +       O₂

200

How many moles of Nitrogen are needed to react with 6 moles of Hydrogen according to the following equation?

3 H₂ + N₂ + 2 NH₂

2 moles of Nitrogen

300

If you have 3 moles of each reactant, how many moles of Hydrogen gas will you produce?

Zn   +        2HCl  →         ZnCl₂   +        H₂

1 mol

400

Balance the following equation:

C₆H₆   +      O₂  →      CO₂   +      H₂O

2C₆H₆   +      15O₂  →      12CO₂   +      6H₂O

500

For the reaction:   O₂ + H₂  →  H₂O

If 3.00 grams of each reactant is used, which will be the limiting reactant? 

oxygen