benabdallahayeah4Lv1

9 Apr 2023

Directions: Follow the instructions in Part A, Part B, and Part C below to complete the assignment.

Part A

Directions: Answer each of the following questions.

1. The loss of electrons is called

a) Reduction
b) Oxidation

2. In the reaction H2 + F2 --> 2HF

a) H2 and F2 are both reduced
b) H2 and F2 are both oxidized
c) H2 is reduced and F2 is oxidized
d) H2 is oxidized and F2 is reduced

3. Give the oxidation number (charge) of Mn in KMnO4
4. Give the oxidation number (charge) of P in H3PO4
5. In the balanced redox equation:
8H+ + 6Cl- + Sn + 4NO3-1 --> SnCl-62 + 4NO2 + 4H2O
the reducing agent is

a) H+
b) Cl-
c) Sn
d) NO3-1
e) SnCl6-2

Part B

Directions: In each of the following equations, indicate the element that has been oxidized and the one that has been reduced.

6. 2 Na + FeCl2 --> 2 NaCl + Fe

7. 2 C2H2 + 5 O2 --> 4 CO2 + 2 H2O

8. 2 PbS + 3 O2 --> 2 SO2 + 2 PbO

9. 2 H2 + O2 --> 2 H2O

10. AgNO3 + Cu --> CuNO3 + Ag

Part C

Directions: Answer each of the following questions in paragraph format

11. What does the term ‘redox’ stand for in chemistry?
12. Explain the ‘redox,’ the ‘oxidation half-reaction,’ and the ‘reduction half-reaction’ processes, in your own words. (Do not copy/paste from the text or the internet – paraphrase – or write in your own words to demonstrate understanding.) Include 2-3 sentences for each process explanation.