Consider the following reaction for the questions below: Ca + Br2 --> CaBr2

Question

a. What type of reaction(s) is/are being represented by the chemical reaction above?

b. Is this reaction an oxidation-reduction (redox) reaction?

c. If this is a redox reaction, then identify the following:

-What is undergoing oxidation (what is being oxidized)? Support your answer

using oxidation numbers.

-What is undergoing reduction (what is being reduced)? Support your answer

using oxidation numbers.

-What is the reducing agent?

-What is the oxidizing agent?                                                                                                            

Answer 1

Ca(s) + Br₂(l) ==> CaBr₂(s)

a) Synthesis (combination) and oxidation/reduction

b) yes

c) Ca is being oxidized since it goes from ox. no, zero to ox, no. 2+ meaning it lost electrons so was oxidized

Br₂ is being reduced since is goes from ox. no. zero to ox. no. 1- meaning it gained electrons so was reduced

The reducing agent is Ca

The oxidizing agent is Br₂