Ch.12-1 & 12-2 Review. Circle the p block on a sketch of the periodic table

STOICHIOMETRYCh.12-1 & 12-2 Review

Circle the p block on a sketch of the periodic

table

Identify what Thomson’s Cathode Ray Tube

Experiment concluded

How many moles of hydrochloric acid (HCl) are

needed to form 3.5 x 103 moles of chlorine gas?

HCl + O2 H2O + Cl2

7.0 x 103 mol HCl

Moles in 77.3 g of beryllium oxide

3.09 mol BeO

Mo(HPO4)3

pentacarbon dioxide

Molecular formula with a percent composition of 92.3% carbon and 7.7% hydrogen, with a molar mass of 78.0 g

C6H6

Provide a Lewis Dot Diagram for phosphorusIn addition, identify the

class of the element

Illustrate the movement of electrons to form an ionic

bond between the reactants and products of the

following ionic compound:

sodium sulfide

Larger atomic size?Nitrogen

Tin

Identify the at least 5 elements that make up

the nonmetals

Circle the d block on a sketch of the periodic

table

Provide a Lewis Dot Diagram for potassiumIn addition, identify the

class of the element

Larger electronegativity?OxygenSulfur

As2O5

How many moles of nitrogen dioxide can be formed from the

decomposition of 1.25 g of dinitrogen pentoxide?

N2O5 NO2 + O2

0.0231 mol NO2

Circle the s block on a sketch of the periodic

table

Identify the four main sublevels in order from least energetic to most energetic

Chlorine was once produced by heating hydrochloric acid with pyrolusite (manganese(IV)

oxide).

How many molecules of water are produced from the reaction of 5.0 g

of HCl?

HCl + MnO2 H2O + MnCl2 + Cl24.1 x 1022 molecules H2O

What happens to ionic size from left to right across a

period?

Moles in 3.54 x 1023 atoms sulfur

5.88 mol S

Larger ionization energy?Oxygen

Selenium

Provide a Lewis Dot Diagram for carbon

In addition, identify the class of the element

sulfuric acid

Identify the elements that make up the alkaline

earth metals

If 3.23 x 1023 molecules of methanol were placed in a

reaction vessel with an excess of carbon monoxide, how many

grams of acetic acid (HC2H3O2) can be produced?

CH3OH + CO HC2H3O232.2 g HC2H3O2

What happens to ionic size down a group?

What is the goal of any atom part of an ionic

compound?

Larger atomic size?CalciumBromine

Determine the average atomic mass of neon

20Ne 90.48%21Ne 0.271%22Ne 9.25%

Answer - 20.2

Determine the average atomic mass of chromium

50Cr 4.345%52Cr 83.789%53Cr 9.501%54Cr 2.365%

Answer - 52.06

copper (II) chloride (aq)+ sodium hydroxide (aq)

1. Determine the products2. Balance the reaction3. Determine the NET ionic equation

How many grams of sodium peroxide (Na2O2) must react with

water to produce 35.0 L of oxygen (and sodium hydroxide)?

244 g Na2O2

Percent composition of a compound containing 5.82 g aluminum and 5.18 g oxygen

52.9% Al47.1% O

Define an alloy

Illustrate the following for:methane (CH4)

- structural formula

- perspective drawing- VSEPR shape

- type(s) of bonds- orbital hybridizations

copper(II) oxide

Electron configuration for:Copernicium

H2CO3

HC2H3O2

Mass of carbon in 56.3 g of propane, C3H8

15.4 g C

Fe(NO3)3

Given the compound carbon dioxide, CO2, illustrate the

presence of the polar bonds.

CEN – 2.5OEN – 3.5

Identify if the molecule is polar

copper (II) bromide +aluminum chloride

1. Identify the type of reaction2. Determine the products3. Balance the reaction

Provide a Lewis Dot Diagram for oxygen





aluminum nitride

Given the compound hydrogen sulfide, H2S, illustrate the

presence of the polar bonds.

HEN – 2.1SEN – 2.5


What happens to atomic size from left to right

across a period?

Describe what defines an element’s atomic number

Circle the f block on a sketch of the periodic

table

Provide a Lewis Dot Diagram for calcium


Identify what Rutherford’s Gold-Foil Experiment

concluded

Electron configuration for:Silicon

What volume of oxygen is necessary to completely react

with 125 L of methane gas (CH4)?

250. L O2

Iron (II) sulfide + hydrochloric acid


What happens to ionization energy down a group?

Density of oxygen gas at STP

0.714 g/L

Co(ClO3)3

Atoms in 2.79 mol of sodium hydroxide

5.04 x 1024 atoms Na, O, H

potassium chlorate potassium chloride + oxygen


Determine the number of subatomic particles in an

isotope of iron-58

FeCl2

Volume of 4.81 mol carbon dioxide at STP

107 L CO2

Electron configuration for:Francium

Identify the at least 5 elements that make up

the representative elements

What happens to shielding down a group?

Identify the elements that make up the halogens

Percent composition of a compound containing 5.55 g

hydrogen from a 50.00 g sample containing only

hydrogen & oxygen

11.1% H88.90% O

Electron configuration for:Arsenic

sulfur trioxide

Al2(SO4)3

Larger electronegativity?CesiumFluorine

Illustrate the following for:hydrogen cyanide (HCN)




aluminum cyanide

potassium hydroxide (aq)+ iron (III) nitrate (aq)


calcium acetate + sodium carbonate


Electron configuration for:Xenon

Identify what determines whether a bond is nonpolar,

polar, or ionic

iron(III) acetate

Electron configuration for:Cadmium

Mass of 6.22 mol potassium iodide

1.03 x 103 g KI

Larger electronegativity?Lithium

Francium

sodium chloride + iodine


Define a quantum

Higher atomic number = _________ attraction

Provide a Lewis Dot Diagram for neon


Provide a Lewis Dot Diagram for sodium


Identify the number of total electrons that could fit into

the 2nd energy level

Moles in 8.47 x 1026 molecules C6H12O6

1.41 x 103 mol C6H12O6

What happens to atomic size down a group?

When 0.50 g of magnesium reacts with silver nitrate, how

many grams of silver are prepared?

4.4 g Ag

aluminum + oxygen


Describe an atom

If electrons are filling the 3rd energy level, identify the possible sublevels that

electrons would have access to.

Illustrate the structural formula of the following

molecule:

bromine


molecule:

chlorine

HClO4

Contrast the three subatomic particles


molecule:

iodine

aluminum bromide + chlorine


Describe how ionic bonds are formed

Determine the number of subatomic particles in an

isotope of cesium-133

Illustrate the following for:carbon dioxide (CO2)




How many sodium atoms are needed to react with 1.25 x

1024 molecules of water?

Na + H2O H2 + NaOH

1.25 x 1024 atoms Na

Molar mass of iron(III) phosphate

150.8 g/mol FePO4

Mass of 0.0331 mol silver

3.57 g Ag

Identify the elements that make up the alkali metals

Ca(ClO)2




magnesium nitride

Larger ionic size?Iodine

Fluorine

benzene (C6H6) + oxygen


Provide a Lewis Dot Diagram for fluorine


SnSe2

hydrosulfuric acid

A frequency of 1.58 x 1018 Hz will produce what

wavelength, in meters?

Where would this fall on the electromagnetic spectrum?

butane (C4H10) + oxygen


Ca(OH)2

CCl4

Larger ionization energy?Hydrogen

Helium

Describe how covalent bonds are formed

When 60.0 g of aluminum react with hydrochloric acid

(HCl), how many grams of hydrochloric acid react?

243 g HCl

Briefly explain why light is emitted from an excited gas

The two isotopes that make up chlorine’s atomic mass are 35Cl & 37Cl

Chlorine’s atomic mass is 35.45

What does this indicate about the abundance of the chlorine isotopes?

Write the electron configuration of a phosphorus atom

Pb(SO4)2




aluminum phosphide

A radar wavelength of 2.03 x 10-1 m will produce what

frequency?


molecule:

oxygen

Larger ionic size?Cesium

Potassium

Identify the elements that make up the noble gases

Provide a Lewis Dot Diagram for beryllium


lithium hydroxide




sodium bromide

Illustrate the following for:ammonia (NH3)



Larger ionic size?Magnesium

Silicon

Cu(NO2)2

hydrogen + chlorine


What happens to shielding from left to right across a

period?

Fill the Aufbau diagram to correctly place the electrons

for a nitrogen atom

1s 2s 2p

Provide a Lewis Dot Diagram for nitrogen


What happens to atomic attraction from left to right across a period?

Identify the unique component of metals that

lead to their properties

NH4HSO3

Identify the at least 5 elements that make up the transition metals

What happens to electronegativity from left to right across a period?

Illustrate the following for:phosphane (PH3)





molecule:

fluorine

What happens to atomic attraction down a group?

titanium(IV) fluoride

Provide a Lewis Dot Diagram for chlorine


How many grams of sodium metal are needed to give 7.81 g of hydrogen by this reaction?

Na + H2O H2 + NaOH

(use 1.00 g/mol for molar mass of hydrogen)

180. g Na

Illustrate the following for:formaldehyde (H2CO)




Given the compound ammonia, NH3, illustrate the presence of the polar bonds.

NEN – 3.0HEN – 2.1


Zn3P2

What happens to ionization energy from left to right

across a period?

Describe what defines an isotope’s mass number

What happens to electronegativity down a

group?

NaOH

Identify the elements that make up the metalloids

Illustrate the following for:carbon tetrachloride (CCl4)



Formula units in 6.48 mol of acetic acid, C2H4O2

3.90 x 1024 form. units C2H4O2

Identify the five scientists that progressed atomic

structure

Illustrate each scientist’s model of the atom

perchloric acid

zinc hydroxide zinc oxide + water


Identify the overall charge on a molecular compound

Larger atomic size?AluminumChlorine

silver hydroxide

Moles in 113 L chlorine gas at STP

5.04 mol Cl2

Provide a Lewis Dot Diagram for aluminum


Illustrate the following for:chloroform (CHCl3)




Molar mass of an unknown gas with a density of 0.902 g/L at

STP

20.2 g – Ne

Identify how the modern periodic table is organized

iron(II) bromide

Write the electron configuration of a strontium

atom

silver nitrate + nickel


Write the electron configuration of a calcium

atom

Larger electronegativity?BerylliumNitrogen

silver nitrate (aq) + nickel (s)


Moles in 159 g of ammonium

8.83 mol NH4+

silver + sulfur


Moles in 1590 L sulfur hexafluoride at STP

71.0 mol SF6

Volume of 8.65 mol argon at STP

194 L Ar

Percent composition of silver nitrate

63.51% Ag8.24% N28.3% O




calcium fluoride

Illustrate the following for:water (H2O)




Molecular formula with a percent composition of 32.0% carbon, 4.0% hydrogen, and 64.0% oxygen, with a molar

mass of 150.0 g

C4H6O6

What is the goal of any atom part of a molecular

compound?


molecule:

nitrogen

Provide a Lewis Dot Diagram for sulfur


Larger ionization energy?SodiumChlorine

Documents

Ch.12-1 & 12-2 Review. Circle the p block on a sketch of the periodic table