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Nomenclature Atomic Theory

Empirical Formulas

Reactions & Stoichiometry

Name the following:

MgSO4

A 100

Magnesium sulfate

A 100

Name the following: CrO2

A 200

Chromium (IV) oxide

A 200

Name the following:

HBrO2

A 300

Bromous acid

A 300

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

A 400

Cu(CN)2

A 400

Name the following: mercury (I) sulfide

A 500

Hg2S

A 500

This scientist discovered the electron

B 100

Thomson

B 100

This subatomic particle is involved in chemical

reactions.

B 200

electrons

B 200

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

neutrons

B 300

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

C 100

C9H14O6

C 100

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, 65.3% O and 32.6% S by mass?

C 300

H2SO4

C 300

DAILY DOUBLE

C 400

DAILY DOUBLE

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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

D 100

Write a balanced chemical equation for the combustion

of butyric acid (C4H8O2).

D 200

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 gb. 9.0 gc. 14 gd. 27 ge. 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

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

D 500

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

E 300

Correct Response Three E

E 300

Question Number Four E

E 400

Correct Response Four E

E 400

Question Number Five E

E 500

Correct Response Five E

E 500

The classification of Mammals with pouches

F 100

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

F 400

What is Tasmania?

F 400

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

F 500

What is the Kiwi?

F 500

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