Chemistry Final Review Part 1

Balancing Equations

100

There must be the same number of ______ of each element on both sides of a chemical equation

What are atoms

200

To get the same number of atoms on both sides, add ___________ to the front of the compounds

What are coefficients

300

Cl, Br, I, F, O, N, H are examples of _________

What are diatomics

400

A salt is formed from a ______ and an ______

What are Cations and Anions

500

A state of matter in which a solid is dissolved in water to form a solution

What is Aqueous

Types of Reactions

100

A reaction in which two or more substances react to form a single product

What is Synthesis/ Composition

200

A reaction in which an element or compound reacts with oxygen gas

What is Combustion

300

A reaction in which a single compound is broken down into two or more simpler substances

What is Decomposition

400

A reaction in which a free element replaces a less active element in a compund

What is Single Replacement

500

A reaction in which two aqueous salts are combined and the ions of the salts switch places

What is Double Replacement

Predicting products of chemical reactions

100

Na + H₂ ->

2Na + 1H₂ -> 2NaH

200

Zn + HCl ->

1Zn + 2HCl -> 1ZnCl₂ + 1H₂

300

MgBr₂ + Cl₂ ->

1MgBr₂ + 1Cl₂ -> 1MgCl₂ + 1Br₂

400

H₂SO₄ + NaOH ->

1H₂SO₄ + 2NaOH -> 1Na₂SO₄ + 2H₂O

500

AgNO₃ + ZnCl₂ ->

2AgNO₃ + 1ZnCl₂ -> 2AgCl + 1Zn(NO₃)₂

Mole conversions (same substance)

100

Convert 50 grams of NaCl to moles

8.62 x 10^-1 moles NaCl

200

Convert 3.20 moles of PbPO₄ to grams

966.4 moles PbPO₄

300

Convert 3.14 moles of Chlorine gas to molecules

109.9 g Cl

400

Convert 2.34 moles of Oxygen gas to Liters

52.42 L O

500

Convert 3.4 x 10²³ particles of CuCl₂ to moles

5.65 x 10^-1 moles CuCl₂

Stoichiometry (mole conversions to different substances)

100

Determine the mass of Sodium Chloride produced when 1.25L of Chlorine Gas reacts with sodium

6.47g NaCl

200

10 moles of Pentane burn in Oxygen to produce Carbon Dioxide and water. How many grams of water were formed.

1.08 x 10³g H₂O

300

Sodium Chloride is decomposed into the elements Sodium and Chlorine. How many grams of Chlorine gas can be obtained from 2.50 moles of Sodium Chloride

87.5g Cl₂

400

NaOH + H₂SO₄ ->

How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide?

355g Na₂SO₄

500

HCl + Na₂SO₄ ->

If you start with 20 grams of Hydrochloric Acid, how many liters of Sodium Chloride will be produced?

12.44L NaCl