Question 1In the balanced redox reaction: 2 C2H6(g) + 7 O2(g) 4 CO2(g) + 6 H2O(g), which species is oxidized?

A) C2H6(g) B) O2(g) C) CO2(g) D) H2O(g)

Question 1In the balanced redox reaction: 2 C2H6(g) + 7 O2(g) 4 CO2(g) + 6 H2O(g), which species is oxidized?

A) C2H6(g) B) O2(g) C) CO2(g) D) H2O(g)

Question 2The expression for the equilibrium constant, K, for the general reaction:

a A + b B c C + d D is:

K = [C][D][A][B]

TRUE or FALSE?

Question 2The expression for the equilibrium constant, K, for the general reaction:

a A + b B c C + d D is:

K = [C][D][A][B]

TRUE or FALSE?

Question 3Which species can be a Brønsted–Lowry base?A) CO3

2–

B) HBr

C) H2CO3

D) NH4+

Question 3Which species can be a Brønsted–Lowry base?A) CO3

2–

B) HBr

C) H2CO3

D) NH4+

Question 4Which species is the conjugate base of NH3?

A) NH4+

D) H2O B) NH2

E) NH4OHC) NH2

–

Question 4Which species is the conjugate base of NH3?

A) NH4+

D) H2O B) NH2

E) NH4OHC) NH2

–

Question 5Phosphorous-32 is used for organ imaging. How many neutrons are in this radioisotope?

A) 15 B) 17 C) 32 D) 47

Question 5Phosphorous-32 is used for organ imaging. How many neutrons are in this radioisotope?

A) 15 B) 17 C) 32 D) 47

Question 6The half-life (t1/2) of a radioactive isotope depends on:

A) the amount of the radioisotope present.B) the isotope.C) the temperature.D) the pressure.E) All of the factors listed above.

Question 6The half-life (t1/2) of a radioactive isotope depends on:

A) the amount of the radioisotope present.B) the isotope.C) the temperature.D) the pressure.E) All of the factors listed above.

Question 7In the galvanic cell created using zinc and copper placed in zinc sulfate and copper (II) sulfate solutions respectively, what is the standard potential of the cell?

A) -0.76 V B) +0.34 V C) 1.10 VD) -0.42 V

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Reduction Reaction E0 (v)Zn2+ (aq) + 2e- Zn (s) -0.76

Cu2+ (aq) + 2e- Cu (s) +0.34

Question 7In the galvanic cell created using zinc and copper placed in zinc sulfate and copper (II) sulfate solutions respectively, what is the standard potential of the cell?

A) -0.76 V B) +0.34 V C) 1.10 VD) -0.42 V

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Reduction Reaction E0 (v)Zn2+ (aq) + 2e- Zn (s) -0.76

Cu2+ (aq) + 2e- Cu (s) +0.34

Question 8In the galvanic cell created using zinc and copper placed in zinc sulfate and copper (II) sulfate solutions respectively, what substance coukd act as the salt bridge?

A) Zinc sulfateB) Potassium chlorideC) Copper sulfateD) Zinc metal

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Question 8In the galvanic cell created using zinc and copper placed in zinc sulfate and copper (II) sulfate solutions respectively, what substance coukd act as the salt bridge?

A) Zinc sulfateB) Potassium chlorideC) Copper sulfateD) Zinc metal

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Question 9Which species is a diprotic acid?

A) Mg(OH)2

B) CH3COOH

C) H2

D) H2CO3

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Question 9Which species is a diprotic acid?

A) Mg(OH)2

B) CH3COOH

C) H2

D) H2CO3

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Question 10Which compound is a weak acid?

A) HNO3

B) HBr

C) CH3COOH

D) H2SO4

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Question 10Which compound is a weak acid?

A) HNO3

B) HBr

C) CH3COOH

D) H2SO4

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Question 11What completes this nuclear equation:

65Cu 65Fe + 25 26

A) Alpha particle C) Positron

B) Beta particle D) Gamma ray

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Question 11What completes this nuclear equation:

65Cu 65Fe + 25 26

A) Alpha particle C) Positron

B) Beta particle D) Gamma ray

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Question 12Which has the greatest penetrating power?

A) an alpha particleB) a gamma rayC) a beta particleD) All of the above have the same

penetrating power.

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Question 12Which has the greatest penetrating power?

A) an alpha particleB) a gamma rayC) a beta particleD) All of the above have the same

penetrating power.

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Question 13When reactants can come together and form products, and products can come together to re-form reactants the reaction is called a _____ reaction.

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Question 13When reactants can come together and form products, and products can come together to re-form reactants the reaction is called a _____ reaction.

REVERSIBLE

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Question 14What is the pH of a cleaning solution with a [H3O+] = 8.2 x 10–9 M H3O+?

A) 5.9 C) 11.5

B) 8.1 D) 2.5

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Question 14What is the pH of a cleaning solution with a [H3O+] = 8.2 x 10–9 M H3O+?

A) 5.9 C) 11.5

B) 8.1 D) 2.5

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Question 15Which solution has the highest pH?

A) 1.9 x 10–8 M [H3O+]B) 1.0 x 10–7 M [H3O+]C) 1.0 x 10–2 M [H3O+]D) 5.1 x 10–4 M [H3O+]

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Question 15Which solution has the highest pH?

A) 1.9 x 10–8 M [H3O+]B) 1.0 x 10–7 M [H3O+]C) 1.0 x 10–2 M [H3O+]D) 5.1 x 10–4 M [H3O+]

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