Question 1What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni2+(aq) + Mg(s) Ni(s) + Mg2+(aq)?

A) Ni2+(aq) + e– Ni(s) and Mg(s) Mg2+(aq) + e–

B) Ni2+(aq) + 2 e– Ni(s) and Mg(s) Mg2+(aq) + 2 e–

C) Ni2+(aq) Ni(s) + 2 e– and Mg(s) + 2 e– Mg2+(aq)

D) Ni2+(aq) Ni(s) + e– and Mg(s) + e– Mg2+(aq)

E) Ni2+(aq) + 2 e– Ni(s) and Mg(s) + 2 e– Mg2+(aq)

Question 1What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni2+(aq) + Mg(s) Ni(s) + Mg2+(aq)?

A) Ni2+(aq) + e– Ni(s) and Mg(s) Mg2+(aq) + e–

B) Ni2+(aq) + 2 e– Ni(s) and Mg(s) Mg2+(aq) + 2 e–

C) Ni2+(aq) Ni(s) + 2 e– and Mg(s) + 2 e– Mg2+(aq)

D) Ni2+(aq) Ni(s) + e– and Mg(s) + e– Mg2+(aq)

E) Ni2+(aq) + 2 e– Ni(s) and Mg(s) + 2 e– Mg2+(aq)

Question 2

A compound that gains electrons while causing another compound to be oxidized is called a(n) _____.

Question 2

A compound that gains electrons while causing another compound to be oxidized is called a(n) _____.

OXIDIZING AGENT

Question 3

When pressure decreases, in which direction does the equilibrium shift?

A) The equilibrium shifts to the side with fewer moles of gas.

B) The equilibrium shifts to the side with more moles of gas.

C) The equilibrium does not shift.

D) The equilibrium shifts always shifts to the right.

E) The equilibrium shifts always shifts to the left.

Question 3

When pressure decreases, in which direction does the equilibrium shift?

A) The equilibrium shifts to the side with fewer moles of gas.

B) The equilibrium shifts to the side with more moles of gas.

C) The equilibrium does not shift.

D) The equilibrium shifts always shifts to the right.

E) The equilibrium shifts always shifts to the left.

Question 4

The definition of an Arrhenius acid is

A) a compound that contains hydroxide and dissolves in water to form –OH.

B) a compound that is a proton donor.

C) a compound that is a proton acceptor.

D) a compound that contains a hydrogen atom and dissolves in water to form a hydrogen ion, H+.

Question 4

The definition of an Arrhenius acid is

A) a compound that contains hydroxide and dissolves in water to form –OH.

B) a compound that is a proton donor.

C) a compound that is a proton acceptor.

D) a compound that contains a hydrogen atom and dissolves in water to form a hydrogen ion, H+.

Question 5

The [H3O+] in a cabernet sauvignon wine is 5.9 x 10–4 M. What is the [–OH] in this wine?

A) 5.9 x 10–4 M –OH

B) 1.0 x 10–7 M –OH

C) 5.9 x 10–18 M –OH

D) 1.7 x 10–11 M –OH

E) 1.0 x 10–14 M –OH

Question 5

The [H3O+] in a cabernet sauvignon wine is 5.9 x 10–4 M. What is the [–OH] in this wine?

A) 5.9 x 10–4 M –OH

B) 1.0 x 10–7 M –OH

C) 5.9 x 10–18 M –OH

D) 1.7 x 10–11 M –OH

E) 1.0 x 10–14 M –OH

Question 6

What is the molarity of an HNO3 solution if 24.1 mL of a 0.250 M Ba(OH)2 solution are needed to titrate a 15.0 mL sample of the acid?

A) 0.402 M HNO3

B) 0.156 M HNO3

C) 0.311 M HNO3

D) 0.201 M HNO3

E) 0.803 M HNO3

Question 6

What is the molarity of an HNO3 solution if 24.1 mL of a 0.250 M Ba(OH)2 solution are needed to titrate a 15.0 mL sample of the acid?

A) 0.402 M HNO3

B) 0.156 M HNO3

C) 0.311 M HNO3

D) 0.201 M HNO3

E) 0.803 M HNO3

Question 7

What is the estimated age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12) compared to living organisms? (C-14 t1/2 = 5,730 years)

A) 1,430 years

B) 5,730 years

C) 17,200 years

D) 22,900 years

E) 28,700 years

Question 7

What is the estimated age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12) compared to living organisms? (C-14 t1/2 = 5,730 years)

A) 1,430 years

B) 5,730 years

C) 17,200 years

D) 22,900 years

E) 28,700 years

Question 8Which nuclear equation is an example of nuclear fission?

A) 27Al + 4He 30O + 1n13 2 15 0

B) 15O 15N + 0e

8 7 +1

C) 239Np 239Pu + 0e 93 94 -1

D) 235U + 1n 137Te + 97Zr + 2 1n92 0 52 40 0

Question 8Which nuclear equation is an example of nuclear fission?

A) 27Al + 4He 30O + 1n13 2 15 0

B) 15O 15N + 0e

8 7 +1

C) 239Np 239Pu + 0e 93 94 -1

D) 235U + 1n 137Te + 97Zr + 2 1n92 0 52 40 0

Question 9

The equation shown below is an example of what type of nuclear reaction?

239Np 239Pu + 0e 93 94 -1

Question 9

The equation shown below is an example of what type of nuclear reaction?

239Np 239Pu + 0e 93 94 -1

BETA DECAY

Question 10

What is the bond angle of the C-O-H shown by arrow 3 in the structure below?

Question 10

What is the bond angle of the C-O-H shown by arrow 3 in the structure below?

109.5°

Question 11

Which compound has the highest boiling point?

A) HOCH2CH2OH

B) CH3NHCH2CH3

C) CH3CO2CH2CH3

D) CH3NHCH2OH

E) NaCH3COO

Question 11

Which compound has the highest boiling point?

A) HOCH2CH2OH

B) CH3NHCH2CH3

C) CH3CO2CH2CH3

D) CH3NHCH2OH

E) NaCH3COO

Question 12

What is the functional group shown in the molecule below?

Question 12

What is the functional group shown in the molecule below?

ESTER