How to determine reducing agent?

How to determine the chemicals are reducing agent or not? Assume that the chemicals are under redox reaction, Q1) K is the strong reducing agent & Cr2O7^2- is the Oxidizing agent , So, K2Cr2O7 is reducing agent or not when it react with others. Q2) How to determine Br. Q3)Why Cl2,Br2 or O2 is the oxidizing... 顯示更多 How to determine the chemicals are reducing agent or not?
Assume that the chemicals are under redox reaction,
Q1) K is the strong reducing agent & Cr2O7^2- is the Oxidizing agent ,
So, K2Cr2O7 is reducing agent or not when it react with others.
Q2) How to determine Br.
Q3)Why Cl2,Br2 or O2 is the oxidizing agent, as they are stable.

thx for help.=]
2 個解答 2