Question 1

Match between columns
                        Premises: neon
oxygen
iodine
chlorine
calcium
hydrogen

Accepted Answer

The Answer of CaS1U1B12S1U1B0(s) and Ne(g) and IS1U1B12S1U1B0(s) and H(g) is...

Question 2

Give the name for H2SO4.

Accepted Answer

A)  sulfuric acid 
B)  persulfurous acid 
C)  sulfurous acid 
D)  hyposulfurous acid 
E)  persulfuric acid 
A)  sulfuric acid 
B)  persulfurous acid 
C)  sulfurous acid 
D)  hyposulfurous acid 
E)  persulfuric acid

Question 3

What is the molar mass of chlorine gas?

Accepted Answer

A)  35.5 g/mol 
B)  70.9 g/mol 
C)  6.02 × 1023 g/mol 
D)  1.20 × 1023 g/mol 
A)  35.5 g/mol 
B)  70.9 g/mol 
C)  6.02 × 1023 g/mol 
D)  1.20 × 1023 g/mol

Question 4

How many SO32- ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.

Accepted Answer

A)  1.52 × 1027 SO3 ions 
B)  4.76 × 1020 SO3 ions 
C)  2.10 × 1021 SO3 ions 
D)  1.05 × 1021 SO3 ions 
E)  9.52 × 1020 SO3 ions 
A)  1.52 × 1027 SO3 ions 
B)  4.76 × 1020 SO3 ions 
C)  2.10 × 1021 SO3 ions 
D)  1.05 × 1021 SO3 ions 
E)  9.52 × 1020 SO3 ions

Question 5

What mass of bromine trifluoride,BrF3,has the same number of fluorine atoms as 25.0 g of oxygen difluoride,OF2?

Accepted Answer

A)  1.69 g 
B)  16.7 g 
C)  42.3 g 
D)  95.1 g 
A)  1.69 g 
B)  16.7 g 
C)  42.3 g 
D)  95.1 g

Question 6

Give the structure for lithium hypochlorite.

Accepted Answer

A)  LiClO 
B)  LiClO2 
C)  LiClO3 
D)  LiClO4 
E)  Li2ClO  
A)  LiClO 
B)  LiClO2 
C)  LiClO3 
D)  LiClO4 
E)  Li2ClO

Question 7

Write a balanced equation to show the reaction of aqueous aluminum acetate with aqueous ammonium phosphate to form solid aluminum phosphate and aqueous ammonium acetate.

Accepted Answer

A)  Al(C2H3O2)2(aq) + (NH4)2PO4(aq) → AlPO4(s) + 2 NH4C2H3O2(aq) 
B)  Al(C2H3O2)2(aq) + (NH3)2PO4(aq) → AlPO4(s) + 2 NH3C2H3O2(aq) 
C)  Al(CO3)2(aq) + (NH3)2PO4(aq) → AlPO4(s) + 2 NH3CO3(aq) 
D)  Al(C2H3O2)3(aq) + (NH4)3PO4(aq) → AlPO4(s) + 3 NH4C2H3O2(aq) 
E)  Al(CO2)3(aq) + (NH4)3PO3(aq) → AlPO3(s) + 3 NH4CO2(aq) 
A)  Al(C2H3O2)2(aq) + (NH4)2PO4(aq) → AlPO4(s) + 2 NH4C2H3O2(aq) 
B)  Al(C2H3O2)2(aq) + (NH3)2PO4(aq) → AlPO4(s) + 2 NH3C2H3O2(aq) 
C)  Al(CO3)2(aq) + (NH3)2PO4(aq) → AlPO4(s) + 2 NH3CO3(aq) 
D)  Al(C2H3O2)3(aq) + (NH4)3PO4(aq) → AlPO4(s) + 3 NH4C2H3O2(aq) 
E)  Al(CO2)3(aq) + (NH4)3PO3(aq) → AlPO3(s) + 3 NH4CO2(aq)

Question 8

How many moles of C5H12 contain 9.25 × 1024 molecules of C5H12?

Accepted Answer

A)  65.1 moles C5H12 
B)  28.6 moles C5H12 
C)  34.9 moles C5H12 
D)  46.2 moles C5H12 
E)  15.4 moles C5H12 
A)  65.1 moles C5H12 
B)  28.6 moles C5H12 
C)  34.9 moles C5H12 
D)  46.2 moles C5H12 
E)  15.4 moles C5H12

Question 9

The chemical formula for the iodite ion is

Accepted Answer

A)  I-. 
B)  I3-. 
C)  IO2-. 
D)  IO3-. 
A)  I-. 
B)  I3-. 
C)  IO2-. 
D)  IO3-.

Question 10

How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011 g/mL and the molar mass is 58.12 g/mol.

Accepted Answer

A)  2.59 × 1023 molecules butane 
B)  1.46 × 1027 molecules butane 
C)  6.87 × 1023 molecules butane 
D)  1.56 × 1023 molecules butane 
E)  7.14 × 1025 molecules butane 
A)  2.59 × 1023 molecules butane 
B)  1.46 × 1027 molecules butane 
C)  6.87 × 1023 molecules butane 
D)  1.56 × 1023 molecules butane 
E)  7.14 × 1025 molecules butane

Question 11

Give the name for KHSO3.

Accepted Answer

A)  monopotassium sulfite 
B)  potassium sulfate 
C)  potassium hydrogen sulfate 
D)  potassium hydrogen sulfite 
E)  potassium disulfite 
A)  monopotassium sulfite 
B)  potassium sulfate 
C)  potassium hydrogen sulfate 
D)  potassium hydrogen sulfite 
E)  potassium disulfite

Question 12

Give the name for HNO2.

Accepted Answer

Question 13

Write the name for SnS.

Accepted Answer

A)  tin(I) sulfate 
B)  tin(I) sulfide 
C)  tin(II) sulfide 
D)  tin(II) sulfate 
E)  tin sulfide 
A)  tin(I) sulfate 
B)  tin(I) sulfide 
C)  tin(II) sulfide 
D)  tin(II) sulfate 
E)  tin sulfide

Question 14

How many millimoles of Ca(NO3)2 contain 4.78 × 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g/mol.

Accepted Answer

A)  12.6 mmol Ca(NO3)2 
B)  13.0 mmol Ca(NO3)2 
C)  20.7 mmol Ca(NO3)2 
D)  79.4 mmol Ca(NO3)2 
E)  57.0 mmol Ca(NO3)2 
A)  12.6 mmol Ca(NO3)2 
B)  13.0 mmol Ca(NO3)2 
C)  20.7 mmol Ca(NO3)2 
D)  79.4 mmol Ca(NO3)2 
E)  57.0 mmol Ca(NO3)2

Question 15

Calculate the mass percent composition of oxygen in Al2(SO4)3.

Accepted Answer

Question 16

Determine the empirical formula for a compound that is 70.79% carbon,8.91% hydrogen,4.59% nitrogen,and 15.72% oxygen.

Accepted Answer

A)  C18H27NO3 
B)  C18H27NO2 
C)  C17H27NO3 
D)  C17H26NO3 
A)  C18H27NO3 
B)  C18H27NO2 
C)  C17H27NO3 
D)  C17H26NO3

Question 17

Why aren't prefixes used in naming ionic compounds?

Accepted Answer

The charges on the ions dictat

Question 18

In which set do all elements tend to form cations in binary ionic compounds?

Accepted Answer

A)  Li, Sn, O 
B)  Ca, Zn, Sn 
C)  N, As, Bi 
D)  S, F, Br 
A)  Li, Sn, O 
B)  Ca, Zn, Sn 
C)  N, As, Bi 
D)  S, F, Br

Question 19

What is the mass (in kg)of 6.89 × 1025 molecules of CO2? The molar mass of CO2 is 44.01 g/mol.

Accepted Answer

A)  3.85 kg 
B)  5.04 kg 
C)  2.60 kg 
D)  3.03 kg 
E)  6.39 kg 
A)  3.85 kg 
B)  5.04 kg 
C)  2.60 kg 
D)  3.03 kg 
E)  6.39 kg

Question 20

Give the name for H2CO3.

Accepted Answer

A)  carbonous acid 
B)  dihydrogen carbonate 
C)  carbonic acid 
D)  hydrocarbonic acid 
E)  hydrocarbide acid 
A)  carbonous acid 
B)  dihydrogen carbonate 
C)  carbonic acid 
D)  hydrocarbonic acid 
E)  hydrocarbide acid

Exam 3: Molecules,compounds,and Chemical Equations

Give the name for H2SO4.

What is the molar mass of chlorine gas?

How many SO32- ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.

What mass of bromine trifluoride,BrF3,has the same number of fluorine atoms as 25.0 g of oxygen difluoride,OF2?

Give the structure for lithium hypochlorite.

Write a balanced equation to show the reaction of aqueous aluminum acetate with aqueous ammonium phosphate to form solid aluminum phosphate and aqueous ammonium acetate.

How many moles of C5H12 contain 9.25 × 1024 molecules of C5H12?

The chemical formula for the iodite ion is

How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011 g/mL and the molar mass is 58.12 g/mol.

Give the name for KHSO3.

Give the name for HNO2.

Write the name for SnS.

How many millimoles of Ca(NO3)2 contain 4.78 × 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g/mol.

Calculate the mass percent composition of oxygen in Al2(SO4)3.

Determine the empirical formula for a compound that is 70.79% carbon,8.91% hydrogen,4.59% nitrogen,and 15.72% oxygen.

Why aren't prefixes used in naming ionic compounds?

In which set do all elements tend to form cations in binary ionic compounds?

What is the mass (in kg)of 6.89 × 1025 molecules of CO2? The molar mass of CO2 is 44.01 g/mol.

Give the name for H2CO3.

Matter, measurement, and Problem Solving

Atoms and Elements

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Give the name for H₂SO₄.

How many SO₃^2- ions are contained in 99.6 mg of Na₂SO₃? The molar mass of Na₂SO₃is 126.05 g/mol.

What mass of bromine trifluoride,BrF₃,has the same number of fluorine atoms as 25.0 g of oxygen difluoride,OF₂?

How many moles of C₅H₁₂ contain 9.25 × 10²⁴ molecules of C₅H₁₂?

Give the name for KHSO₃.

Give the name for HNO₂.

How many millimoles of Ca(NO₃)₂ contain 4.78 × 10²² formula units of Ca(NO₃)₂? The molar mass of Ca(NO₃)₂ is 164.10 g/mol.

Calculate the mass percent composition of oxygen in Al₂(SO₄)₃.

What is the mass (in kg)of 6.89 × 10²⁵molecules of CO₂? The molar mass of CO₂ is 44.01 g/mol.

Give the name for H₂CO₃.