Author Question: What chemical process is happening at the anode of a fuel cell, which uses the following reaction to ... (Read 54 times)

Charlie · **on:** Aug 27, 2018

What chemical process is happening at the anode of a fuel cell, which uses the following reaction to generate electricity?

2H2 + O2 2H2O
A) Hydrogen is being oxidized.
B) Oxygen is being oxidized.
C) Nothing at all is happening there.
D) Oxygen is being reduced.

Question 2

37Ar + -1e ________

Fill in the blank(s) with correct word

Question 3

A fuel cell is essentially a battery which uses the following reaction to produce electricity. What is happening at the cathode of such a fuel cell?

2H2 + O2 2H2O
A) Hydrogen is being oxidized.
B) Oxygen is being oxidized.
C) Nothing at all is happening there.
D) Oxygen is being reduced.

Question 4

Identify the oxidation-reduction equation.

A) NaOH + HCl NaCl + H2O
B) AgNO3 + NaCl AgCl + NaNO3
C) CH4 + 2 O2 CO2 + 2 H2O
D) CaO + CO2 CaCO3

Question 5

The pH = -logH+ for a solution. The pOH = -logOH- for a solution. The pH and pOH are related, and their sum is equal to 14 (pH + pOH = 14). If the concentration of a dilute solution of potassium hydroxide is 0.

001 M, what is the pH of that solution? A) 7
B) 3
C) 11
D) 2

Question 6

137Nd 24Mg + ________

Fill in the blank(s) with correct word

Question 7

Identify the weakly basic solution.

A) urine
B) milk of magnesia
C) saliva
D) milk

daiying98 · **Reply #1 on:** Aug 27, 2018

Answer to Question 1

A

Answer to Question 2

37Cl

Answer to Question 3

D

Answer to Question 4

C

Answer to Question 5

C

Answer to Question 6

113Cd

Answer to Question 7

B