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Reactions & Stoichiometry Empirical Formulas Atomic Theory Reactions & Stoichiometry Nomenclature 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500

Name the following: MgSO4 A 100

Magnesium sulfate A 100

Name the following: CrO2

Chromium (IV) oxide A 200

Name the following: HBrO2 A 300

Bromous acid A 300

Write the formula for the following: copper (II) cyanide

Cu(CN)2 A 400

Name the following: mercury (I) sulfide

Hg2S A 500

This scientist discovered the electron B 100

Thomson B 100

This subatomic particle is involved in chemical reactions.

electrons B 200

Write the chemical symbol for the species containing 36 electrons, 35 protons, and 44 neutrons

7935Br B 300

This scientist discovered the neutron. B 400

Chadwick B 400

Name the only country that is named after an element. B 500

Argentina B 500

What is the empirical formula of the compound with the formula C18H28O12

C9H14O6 C 100

Mustard gas (C4H8Cl2S) is a poisonous gas that was used in World War I Mustard gas (C4H8Cl2S) is a poisonous gas that was used in World War I. Calculate the percent composition by mass of chlorine in mustard gas. C 200

44.6% C 200

What is the empirical formula of a compound containing 2. 1% H, 65 What is the empirical formula of a compound containing 2.1% H, 65.3% O and 32.6% S by mass? C 300

H2SO4 C 300

DAILY DOUBLE DAILY DOUBLE Place A Wager C 400

Analysis of a metal chloride XCl3 shows it contains 67. 2% Cl by mass Analysis of a metal chloride XCl3 shows it contains 67.2% Cl by mass. Calculate the molar mass of X and identify the element. C 400

Molar mass = 158.26 g/mol Chromium C 400

Methyl tert-butyl ether (MTBE) is a compound (composed of C, H, and O) that has replaced lead in gasoline. When 12.1 g of MTBE of the compound are burned, 30.2 g of CO2 and 14.8 g of H2O are formed. What is the empirical formula of the compound? C 500

C5H12O C 500

Why is it necessary to balance chemical equations? D 100

B/c the law of conservation of mass states that matter cannot be created or destroyed

Write a balanced chemical equation for the combustion of butyric acid (C4H8O2).

C4H8O2 + 5O2 --> 4CO2 + 4H2O D 200

2 Al (s) + 6 HCl(aq)  2 AlCl3(aq) + 3 H2(g) According to the reaction represented above, about how many grams of aluminum are necessary to produce 0.50 mol of hydrogen gas at 25°C and 1.00 atm? a. 1.0 g b. 9.0 g c. 14 g d. 27 g e. 56 g D 300

b. 9.0 g D 300

C6H6 + Br2 --> C6H5Br + HBr What is the theoretical yield of bromobenzene (C6H5Br) when 30.0g of benzene (C6H6 ) reacts with 65.0 g of bromine? D 400

60.38 g D 400

C7H6O3 + C4H6O3 --> C9H8O4 + HC2H3O2 Aspirin, C9H8O4, is produced from salicylic acid, C7H6O3, and acetic anhydride, C4H6O3. C7H6O3 + C4H6O3 --> C9H8O4 + HC2H3O2 What is the theoretical yield of aspirin if 185 kg of salicylic acid is allowed to react with 125 kg of acetic anhydride? D 500

Correct Response Five D

Question Number One E E 100

Correct Response One E E 100

Question Number Two E E 200

Correct Response Two E E 200

Question Number Three E

Correct Response Three E

Question Number Four E E 400

Correct Response Four E

Question Number Five E E 500

Correct Response Five E

The classification of Mammals with pouches

What are Maruspials? F 100

This second largest bird in the world is native to Australia F 200

What is the ostrich? F 200

Australia’s wild dogs F 300

What are dingos? F 300

This Australian island is the home of a devil and a wolf

What is Tasmania? F 400

Although the National Bird of New Zealand, it is also indigenous to Australia

What is the Kiwi? F 500

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