element of the day clickers au...2014/04/24  · 2 1. element of the day 5 2. review homework 10 3....

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1 Element of the Day Clickers Au Gold (ɡoʊld) is a chemical element with the symbol Au (from Latin: aurum "gold") and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive solid chemical elements. The metal therefore occurs often in free elemental (native) form, as nuggets or grains in rocks, and in veins. Gold has been a valuable and highly sought after precious metal for coinage, jewelry, and other arts since long before the beginning of recorded history. Gold standards have been the most common basis for monetary policies throughout human history, being widely supplanted by fiat currency only in the late 20th century. All the gold ever mined in the world would fit into a cube with sides of length 20.3 m! Write the atomic symbol, with atomic mass, and atomic number for gold.

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Page 1: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

1

Element of the Day ­ Clickers

AuGold (ɡoʊld) is a chemical element with the symbol Au (from Latin: aurum "gold")and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductilemetal. Chemically, gold is a transition metal and a group 11 element. It is one ofthe least reactive solid chemical elements. The metal therefore occurs often in freeelemental (native) form, as nuggets or grains in rocks, and in veins.Gold has been a valuable and highly sought after precious metal for coinage,jewelry, and other arts since long before the beginning of recorded history. Goldstandards have been the most common basis for monetary policies throughouthuman history, being widely supplanted by fiat currency only in the late 20thcentury. All the gold ever mined in the world would fit into a cube with sides oflength 20.3 m!

Write the atomic symbol, with atomic mass, and atomic number for gold.

Page 2: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

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1. Element of the Day ­52. Review Homework ­103. Review for Quiz ­204. Quiz ­255. JigsawAnnouncements

Due Today: Read pages 373 to 388 and answer questions 75­91 odd in chemistry textbook and complete final Tanker Problem explanations.

Due Monday: Work on jigsaw

Come in after school today to make up any missing work/tests/quizzes. 

Chemistry

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Review Homework

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Gas Laws ReviewClicker Question 

Which of the following statements about gases is incorrect?

a. Pressure and Volume are inversely related.

b. Pressure and Temperature are inversely related.

c. Pressure and number of moles are directly related.

d. Volume and number of moles are directly related.

Page 5: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

5

Review for QuizConvert 822 torr into units of mm Hg.

a. 1.08 atm

b. 8.13

c. 82.2

d. 822 mm Hg

Page 6: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

6

Review for QuizIf 525 mL of gas at 25 degrees C is heated to 50 degrees C at constant pressure, calculate the new volume of the sample.

a. 510 mL

b. 525 mL

c. 534 mL

d. 569 mL

Page 7: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

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Review for QuizIf 3.25 mol of argon gas occupies a volume of 100. L at a particular temperature and pressure, what volume does 14.15 mol of argon occupy under the same conditions?

a. 435 L

b. 445 L

c. 455 L

d. 465 L

Page 8: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

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Review for QuizDetermine the pressure in a 125­L tank containing 56.2 kg of oxygen gas at 21 degrees C. 

a. 240 atm

b. 300 atm

c. 340 atm

d. 400 atm

Page 9: Element of the Day Clickers Au...2014/04/24  · 2 1. Element of the Day 5 2. Review Homework 10 3. Review for Quiz 20 4. Quiz 25 5. Jigsaw Announcements Due Today: Read pages 373

9

Review for QuizWhich of the following is Dalton's Law of partial pressures?

a. Ptotal = P1 + P2 + P3...

b. Ptotal = P1 ­ P2

c. Ptotal = P1 only

d. There is no relationship between total pressure and the individual pressures of each gas.

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Review for QuizThe kinetic molecular theory of gases suggests that gas particles exert _________ attractive or repulsive forces on each other.

a. great

b. unique

c. no

d. varied 

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Quiz

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Solutions Jigsaw

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Modified Groups  Period 1Jigsaw

Group 1 Group 5

Jumpa Aaron Wolgamo Melody

Bowman Mahew Reynolds Devon

James Alyssa Minasian Aria

Nahle Monica Haines Madeline

Jackson Jordan Rabinowitz Maiya

Group 2 Group 6

Gonwick Dawson Friday Angelic

Sander Cole Karreman Anneke

Pecora Katherine Gori Miles

Beae Natalie Brown Rosemary

Group 3 Group 7

Holt Ryan

Alnwick Ashley

McCombs Duncan

Cowan Eliana

Group 4 Group 8

Maes Erika

Wiggins Kaitlyn

Ieropoli Ryan

Ginder Caroline

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Jigsaw Period 3Group 1

Jigsaw ‐ Modified

Group 1 Group 5

Callaham Shawn Dassel Quinn

Kulfan Riley Lee Alyssa

Arlt Kaitlyn Treskin Kaylie

Delgado Malena Hobbs Robert

Gordon Laura

Group 2

Sellman Megan Group 6

Schuelke Maximilian

Millican Gregory

Sco Benjamin

Strevell Noah

Group 3

Powell Amber Group 7

Young Ruth

Olson Sonia

Sanford Nicole

Group 4

Sharp Peter Group 8

Williamson Benjamin

Fabert Emma

Ploger Braden

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Exit Question

Reminder(s)

What is an acid?

Due Monday: Work on jigsaw