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THIS. IS. ™. JEOPARDY. Jeopardy. ™. Review problems. Colligative properties. Titrations and reactions. Acids and Bases. pH. Electro chemisty. 100. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 400. - PowerPoint PPT Presentation

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Reviewproblems

Colligative properties pH Titrations and

reactionsElectro

chemisty

Acids and Bases

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Why do elements in a group have similar chemical

characteristics

A 100

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Because they all have the same number of valence

electrons

A 100

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What is the difference between ionic and covalent bonds in terms of electrons?

A 200

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Covalent Bonds – Electrons are shared

between atoms

Ionic Bonds – Electrons are transferred from one atom to

another.

A 200

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What is an isotope?

A 300

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An atom that has different amounts of neutrons.

A 300

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Define endothermic and exothermic reactions.

A 400

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Exothermic reactions are reactions where energy is a released, ∆H is negative and

reactions generally feel warm.

Endothermic reactions are reactions where energy is

absorbed, ∆H is positive and reactions generally feel cold.

A 400

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How many protons and neutrons are in an element of Carbon-14?

A 500

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6 Protons; 8 neutrons

A 500

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What are the three colligative properties?

B 100

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Vapor Pressure Decreasing

Boiling Point Elevation

Freezing Point Depression

B 100

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Which will lower the freezing point the most and why?

NaCl or C6H12O6

B 200

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NaCl, because it dissociates into two particles and will

hold solvent particles in the liquid more effectively that

molecular substances that do not dissociate.

B 200

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Name two instances where colligative properties are used in

everyday life.

B 300

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B 300

Road Salt

Anti-Freeze in cars

Other responses will be judged by Ms. Jensen

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What is the freezing point and boiling point of a 0.5 m

aqueous MgSO4 solution?

B 400

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Freezing point: -1.86 degrees

Boiling point: 100.5 degrees

B 400

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What is the boiling point of a solution made from 20.0 g of

CO2 in 400 g of water?

B 500

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Boiling point: 100.5 degrees

B 500

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Find the pH if

[H+] = 1 x 10 -9 M

And tell if the solution is acidic or basic

C 100

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C 100

9; basic

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C 200

What is the pH if [OH-] = 1 x 10 -6 M

and tell if it is acidic or basic

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8; basic

C 200

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Find the pH of a 2.6 x 10-3 M HCl solution and tell if it is

acidic or basic

C 300

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2.6 ; acidic

C 300

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DAILY DOUBLE

C 400

DAILY DOUBLE

Place A Wager

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Find the pH a 6.7 x 10-2 Ca(OH)2 solution and tell if it

is acidic or basic

C 400

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13.1; basic

C 400

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If a solution has a pH of 6.7, find the hydrogen ion concentration.

Is this acidic or basic?

C 500

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2 x 10 -7; acidic

C 500

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What is a titration?

D 100

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When an acid and a base is added together until they are

equivalent to find an unknown concentration

D 100

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What is the molarity of an HCl solution if 30 mL is

needed to neutralize 20 mL of a 0.45 M NaOH solution

D 200

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0.3 M

D 200

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What is the molarity of an H3PO4 solution if 20 mL is

completely titrated by 45 mL of a 0.14 M NaOH solution?

D 300

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0.105 M

D 300

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Write a balanced reaction when magnesium hydroxide

and nitric acid react

D 400

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Mg(OH)2 +2HNO3 Mg(NO3)2 + 2H2O

D 400

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Write a balanced reaction when sodium reacts with

hydrobromic acid

D 500

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2Na +2 HBr 2NaBr + H2.

D 500

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Is this reaction a spontaneous redox reaction?

Mg + Sn2+ Mg2+ + Sn

E 100

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Yes, Sn is reduced and is above magnesium and on reduction potential chart

E 100

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How will electrons flow in a Sr/Sr 2+//Zn/Zn 2+

electrochemical cell?

E 200

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Zinc

E 200

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What are the oxidation numbers in NO3

-

E 300

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+5, -2

E 300

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What is oxidation?

E 400

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How many volts can a

Pb/Pb2+ //Zn/Zn2+ cell

produce and

what neutral metal is made?

E 500

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0.63 V; Pb

E 500

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F 100

What makes a substance an acid?

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The ability to dissociate into H+ ions.

F 100

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Name the following and tell if it is a strong or weak acid or

base

HClO2

F 200

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Chlorous acid; weak acid

F 200

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What is the [OH-] in a neutral solution?

F 300

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1 x10-7

F 300

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Name the following and tell if it is a weak or strong acid or

base

Fe(OH)3

F 400

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Iron (III) hydroxide

Weak base

F 400

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Which of the following would be the best conductor

of electricity and why?

HNO3, H2S, Mg(OH)2

F 500

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HNO3; because it is a strong acid so it ionizes completely

putting a lot of ions in solution

F 500

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The Final Jeopardy Category is:

Acids and bases

Click on screen to begin

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Which solution will have the most hydrogen ion?

pH = 9

pH= 2

Click on screen to continue

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pH = 2

Click on screen to continue

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Thank You for Playing Jeopardy!