Chemistry Final

1. Which is NOT an element?

He

N

NaCl

Mg

2. The _______ is the complete arrangement of electrons in an atom and determines how the atom will chemically bond and influences the orientation of its orbital in space, and its spin.

Electron configuration

Orbital science

Chemical properties of an atom

3. All of the following are biological polymers except –

Proteins

Petroleum

Lipids

DNA

4. In which situation is a chemical reaction occurring?

Salt dissolving in water

A nail rusting

Ice melting

A glass window breaking

5. What coefficient is needed in front of NH₃ in order for the following equation to be balanced? N₂ + H₂ → NH₃

2

3

4

6

6. What coefficient is needed in front of NH₃ in order for the following equation to be balanced? N₂ + H₂ → NH₃

2

3

4

5

7. All of the following are biological polymers except –

Proteins

Petroleum

Lipids

DNA

8. In which situation is a chemical reaction occurring?

Salt dissolving in water

A nail rusting

Ice melting

A glass window breaking

9. If a water solution conducts electricity, what must the solute be?

Solid

Liquid

Electrolyte

Nonelectrolyte

10. Fossil fuels that contain carbon, such as coal, petroleum and natural gas, combine with oxygen to produce carbon dioxide gas and energy often in the form of heat. These processes are example of which type of reactions?

Endothermic reactions

Exothermic reaction

Metabolic reactions

Replacement reactions

11. All of the following speed up the dissolving process except _______.

Stirring the solution

Increasing the size of the solid to be dissolved

Increasing the temperature of the solvent

Crushing the solid to be dissolve

12. A hydrocarbon is composed of –

Carbons only

Carbon, hydrogen, and other atoms

Carbon and hydrogen only

Carbon plus a variety of other elements

13. Fossil fuels that contain carbon, such as coal, petroleum and natural gas, combine with oxygen to produce carbon dioxide gas and energy often in the form of heat. These processes are example of which type of reactions?

Endothermic reactions

Exothermic reaction

Metabolic reactions

Replacement reactions

14. What is the name of the OH^- ion?

Anhydride

Oxide

None of the above

15. What is the name of the CO₃^-2 ion?

Bicarbonate

Bicarboxide

Carbonate

Carbonite

16. How many electrons does an atom of the element mercury (Hg) have?

12

121

80

201

17. What is the mass of an atom with 8 protons, 7 neutrons, and 8 electrons?

15 amu

7 amu

8 amu

23 amu

18. What are the products in an acid / base reaction?

Hydrogen gas and water

Hydronium ions and hydroxide ions

A salt and water

19. Horizontal rows of elements are called ; Vertical columns of elements are called _.

Periods, columns

Periods, trends

Periods, groups

Groups, periods

20. Propane, C₃H_8 (g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C₃H₈ + O₂ → CO₂ + H₂O b. C₃H₈ + 5O₂ → 3CO₂ + 4H₂O c. C₃H₈ + 5O₂ → CO₂ + 4H₂O d. 2C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

A

B

C

D

21. Which of the following has six valence electrons?

Beryllium

Carbon

Oxygen

Neon

22. Propane, C3H8(g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C₃H₈ + O₂ → CO₂ + H₂O b. C₃H₈ + 5O₂ → 3CO2 + 4H₂O c. C₃H₈ + 5O₂ → CO2 + 4H₂O d. 2C₃H₈ + 5O₂ → 3CO2 + 4H₂O

A

B

C

D

23. What are the small units that make up polymers called?

Monomers

Plastics

Isomers

Proteins

24. When iron is exposed to air and moisture, it corrodes or rusts. Examine the equation below for the formation of hydrated iron (III) oxide: Fe + O₂ + H₂O → Fe₂O₃+ 3H₂O How many molecules of water are contained in the product?

2

3

6

1

25. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M₁V₁ = M₂V₂)

100 ml

1000 ml

350 ml

250 ml

26. What can a polar molecule dissolve?

Any solute

A nonpolar solute

A polar solute

No solute

27. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M₁V₁ = M₂V₂)

100 ml

1000 ml

350 ml

250 ml

28. What is the formula for Sodium Hydroxide? a. Na(OH)₂b. NaHO c. NaH d. NaOH e. none of the above

A

B

C

D

E

29. Write the name of the compound CCl₄

Carbon Tetrachlorate

Carbon Chloride

Carbonic Acid

Carbon Tetrachloride

30. LAB / Cr₂O₃ + 2Al → Al₂O₃ + 2Cr Chromium is produced by reacting chromium oxide with aluminum as shown in the above reaction. If 92.0 grams of Cr₂O₃ and 37.0 g of Al react completely to form 71.0 g of Al₂O₃, how many grams of Cr are produced?

37.0 g

58.0 g

129.0

104 g

31. Using only the periodic table, list the following elements according to increasing electronegativity: Ca, Cs, F, Si

F, Si, Ca, Cs

Cs, Ca, Si, F

Cs, Si, F, Ca

F, Cs, Ca, Si

32. Write the name of the compound H₂SO₄

Hydrogen Sulfide

Sulfurous Hydride

Sulfuric Acid

DiHydrogen TetraSulfate

33. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M₁V₁ = M₂V₂)

100 ml

1000 ml

350 ml

250 ml

34. What is the atomic mass of the element cadmium (Cd)?

112

64

48

96

35. What is the formula for aluminum sulfate? a. AlSO₄b. Al₂SO₄c. Al₂(SO₄)₃d. Al(SO₄)₃

A

B

C

D

36. In the electron cloud model of an atom, what accounts for most of the volume?

Electrons

Empty space

Neutrons

Protons

37. What is the correct formula for Lead IV Nitrate? A. Pb₂(NO₃)₂B. Pb₂(NO₃)₃C. Pb(NO₃)₂D. Pb₄(NO₃)₂

A

B

C

D

38. H₂SO₄ + KOH → K₂SO₄ + H₂O Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag NiCl₂ + NaOH → Ni(OH)₂ + 2NaCl\ H₂ + O₂ → 2H₂O All of the equations above show what?

Reactants combining with products to produce a new substance

No chemical changes occurring

Physical changes taking place

Reactants combining to produce new substances

39. What is the name of H₂CrO₄?

Carbonic acid

Chromatic acid

Chromic acid

40. Which process results in the tremendous energy given off by the Sun?

Combustion

Nuclear decay

Nuclear fission

Nuclear fusion

41. Given the unbalanced equation _Fe₂O₃ + _CO → _Fe + _CO₂ When the equation is correctly balanced, using the smallest whole-number coefficients, what is the coefficient of CO₂? a. 1 b. 2 c. 3 d. 4

1

2

3

4

42. This equation is balanced and represents a neutralization reaction. HCL_(aq) + 2NaOH_(aq) --> NaCl_(aq) + H₂O_(l)

True balanced, but not a neutralization reaction

True

False

43. What is the measure of the concentration of H₃O⁺ions in a given solution?

POH

PH

Weak base

Strong acid

44. Elements in the middle of the periodic table are ___

Alkaline Earth Metals

Rare Earth Metals

Halogens

Transition Metalloids

None of the Above

Chemistry Final

1. Which is NOT an element?

2.

What first name or nickname would you like us to use?

2. The _______ is the complete arrangement of electrons in an atom and determines how the atom will chemically bond and influences the orientation of its orbital in space, and its spin.

3. All of the following are biological polymers except –

4. In which situation is a chemical reaction occurring?

5. What coefficient is needed in front of NH3 in order for the following equation to be balanced? N2 + H2 → NH3

6. What coefficient is needed in front of NH3 in order for the following equation to be balanced? N2 + H2 → NH3

7. All of the following are biological polymers except –

8. In which situation is a chemical reaction occurring?

9. If a water solution conducts electricity, what must the solute be?

10. Fossil fuels that contain carbon, such as coal, petroleum and natural gas, combine with oxygen to produce carbon dioxide gas and energy often in the form of heat. These processes are example of which type of reactions?

11. All of the following speed up the dissolving process except _______.

12. A hydrocarbon is composed of –

13. Fossil fuels that contain carbon, such as coal, petroleum and natural gas, combine with oxygen to produce carbon dioxide gas and energy often in the form of heat. These processes are example of which type of reactions?

14. What is the name of the OH- ion?

15. What is the name of the CO3-2 ion?

16. How many electrons does an atom of the element mercury (Hg) have?

17. What is the mass of an atom with 8 protons, 7 neutrons, and 8 electrons?

18. What are the products in an acid / base reaction?

19. Horizontal rows of elements are called ______; Vertical columns of elements are called _______.

20. Propane, C3H8 (g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C3H8 + O2 → CO2 + H2O b. C3H8 + 5O2 → 3CO2 + 4H2O c. C3H8 + 5O2 → CO2 + 4H2O d. 2C3H8 + 5O2 → 3CO2 + 4H2O

21. Which of the following has six valence electrons?

22. Propane, C3H8(g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C3H8 + O2 → CO2 + H2O b. C3H8 + 5O2 → 3CO2 + 4H2O c. C3H8 + 5O2 → CO2 + 4H2O d. 2C3H8 + 5O2 → 3CO2 + 4H2O

23. What are the small units that make up polymers called?

24. When iron is exposed to air and moisture, it corrodes or rusts. Examine the equation below for the formation of hydrated iron (III) oxide: __Fe + __O2 + __H2O → __Fe2O3+ 3H2O How many molecules of water are contained in the product?

25. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M1V1 = M2V2)

26. What can a polar molecule dissolve?

27. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M1V1 = M2V2)

28. What is the formula for Sodium Hydroxide? a. Na(OH)2 b. NaHO c. NaH d. NaOH e. none of the above

29. Write the name of the compound CCl4

30. LAB / Cr2O3 + 2Al → Al2O3 + 2Cr Chromium is produced by reacting chromium oxide with aluminum as shown in the above reaction. If 92.0 grams of Cr2O3 and 37.0 g of Al react completely to form 71.0 g of Al2O3, how many grams of Cr are produced?

31. Using only the periodic table, list the following elements according to increasing electronegativity: Ca, Cs, F, Si

32. Write the name of the compound H2SO4

33. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M1V1 = M2V2)

34. What is the atomic mass of the element cadmium (Cd)?

35. What is the formula for aluminum sulfate? a. AlSO4 b. Al2SO4 c. Al2(SO4)3 d. Al(SO4)3

36. In the electron cloud model of an atom, what accounts for most of the volume?

37. What is the correct formula for Lead IV Nitrate? A. Pb2(NO3)2 B. Pb2(NO3)3 C. Pb(NO3)2 D. Pb4(NO3)2

38. H2SO4 + KOH → K2SO4 + H2O Cu + 2AgNO3 → Cu(NO3)2 + 2Ag NiCl2 + NaOH → Ni(OH)2 + 2NaCl\ H2 + O2 → 2H2O All of the equations above show what?

39. What is the name of H2CrO4?

40. Which process results in the tremendous energy given off by the Sun?

41. Given the unbalanced equation ___Fe2O3 + ___CO → ___Fe + ___CO2 When the equation is correctly balanced, using the smallest whole-number coefficients, what is the coefficient of CO2? a. 1 b. 2 c. 3 d. 4

42. This equation is balanced and represents a neutralization reaction. HCL (aq) + 2NaOH (aq) --> NaCl (aq) + H2O (l)

43. What is the measure of the concentration of H3O+ ions in a given solution?

44. Elements in the middle of the periodic table are ___

5. What coefficient is needed in front of NH₃ in order for the following equation to be balanced? N₂ + H₂ → NH₃

6. What coefficient is needed in front of NH₃ in order for the following equation to be balanced? N₂ + H₂ → NH₃

14. What is the name of the OH^- ion?

15. What is the name of the CO₃^-2 ion?

19. Horizontal rows of elements are called ; Vertical columns of elements are called _.

20. Propane, C₃H_8 (g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C₃H₈ + O₂ → CO₂ + H₂O b. C₃H₈ + 5O₂ → 3CO₂ + 4H₂O c. C₃H₈ + 5O₂ → CO₂ + 4H₂O d. 2C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

22. Propane, C3H8(g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C₃H₈ + O₂ → CO₂ + H₂O b. C₃H₈ + 5O₂ → 3CO2 + 4H₂O c. C₃H₈ + 5O₂ → CO2 + 4H₂O d. 2C₃H₈ + 5O₂ → 3CO2 + 4H₂O

24. When iron is exposed to air and moisture, it corrodes or rusts. Examine the equation below for the formation of hydrated iron (III) oxide: Fe + O₂ + H₂O → Fe₂O₃+ 3H₂O How many molecules of water are contained in the product?

25. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M₁V₁ = M₂V₂)

27. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M₁V₁ = M₂V₂)

28. What is the formula for Sodium Hydroxide? a. Na(OH)₂b. NaHO c. NaH d. NaOH e. none of the above

29. Write the name of the compound CCl₄

30. LAB / Cr₂O₃ + 2Al → Al₂O₃ + 2Cr Chromium is produced by reacting chromium oxide with aluminum as shown in the above reaction. If 92.0 grams of Cr₂O₃ and 37.0 g of Al react completely to form 71.0 g of Al₂O₃, how many grams of Cr are produced?

32. Write the name of the compound H₂SO₄

33. LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M₁V₁ = M₂V₂)

35. What is the formula for aluminum sulfate? a. AlSO₄b. Al₂SO₄c. Al₂(SO₄)₃d. Al(SO₄)₃

37. What is the correct formula for Lead IV Nitrate? A. Pb₂(NO₃)₂B. Pb₂(NO₃)₃C. Pb(NO₃)₂D. Pb₄(NO₃)₂

38. H₂SO₄ + KOH → K₂SO₄ + H₂O Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag NiCl₂ + NaOH → Ni(OH)₂ + 2NaCl\ H₂ + O₂ → 2H₂O All of the equations above show what?

39. What is the name of H₂CrO₄?

41. Given the unbalanced equation _Fe₂O₃ + _CO → _Fe + _CO₂ When the equation is correctly balanced, using the smallest whole-number coefficients, what is the coefficient of CO₂? a. 1 b. 2 c. 3 d. 4

42. This equation is balanced and represents a neutralization reaction. HCL_(aq) + 2NaOH_(aq) --> NaCl_(aq) + H₂O_(l)

43. What is the measure of the concentration of H₃O⁺ions in a given solution?