Unit 3:Molecules
Unit 4: Reactions
Unit 5: Applying Reactions
Unit 4+5: Could be either
Acids & Bases
100

This compound has the chemical symbol CaCl2

What is calcium chloride?

100

This law, which states that matter is neither created nor destroyed, explains why chemical reactions need to be balanced

What is conservation of mass?

100

This is the molarity of a solution when 1.1 moles of solute are dissolved in 2.04 L of solvent

Units matter

What is 0.54 M?

100

This principle, named for a French chemist, allows us to predict what will happen when an equilibrium is stressed

What is LeChatelier's Principle

100

A compound that tastes sour is most likely this type of material

What is acid?

200

This is the formula for trisulfur octachloride

What is S3Cl8?

200

The unbalanced chemical reaction C2H6O + O2 --> CO2 + H2O is an example of this type of reaction

What is combustion?

200
When a system is at equilibrium, the rates of these two reactions are equal

What are the forward and reverse reactions?

200

This type of reaction usually has only one reactant and multiple products

What is decomposition?

200

Litmus paper turns this color when exposed to a base

What is blue?

300

The difference in this property of elements determines the polarity of a bond

What is electronegativity?

300

This is the molar mass of RbCl

Units matter

What is 120.9 g/mol?

300

This is the equilibrium expression for the reaction N2 + 3 H2 <--> 2 NH3

[NH3]2

[N2]*[H2]3

300

The missing coefficient in this chemical equation

C3H8 + 5 O2 --> 3 CO2 + ___ H2O

What is 4?

300

Bases have a pH value in this range

What is 7-14?

400

This prefix indicates there are four of an atom in a molecule

What is tetra-?

400

34 grams of a compound with a molar mass of 81.3 g/mol is this many moles

Units matter

What is 0.42 mol?

400

Calculate Keq for this reaction when [NO2]=3.02 M and [N2O4]=7.11 M

2 NO2 <--> N2O4

What is 0.78?

400

This many mL of a 8.2 M stock solution should be diluted to 100 mL to make a 1.3 M solution

Units matter

What is 15.9 mL?

400

This is the pH of a solution where the concentration of [H+] is 7.73*10-4

What is 3.11?

500

Hydrogen sulfide (H2S) has this molecular geometry

What is bent?

500

If 3.1 moles of compound A react, how many moles of compound C are produced?

2A + B --> 3 C + D

What is 4.65 mol?

500

When additional products are added to a system at equilibrium, the reaction shifts in this direction

What is left/towards reactants?

500

If you have 3 moles of compound A and 2 moles of compound B, this is the limiting reactant

2 A + 2 B --> 7C + 3D

What is B?

500

Acids that do not completely dissociate into hydrogen ions and anions are this type of acid

What are weak?

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