Chemistry
nyaonko31 asked: 2N2H4 + N2O4 → 3N2 +4H2O
How do you find the oxidizing agent and reducing agent?
Can someone please explain?

abstemious_entity asked: an emulsifier/emulsifying agent is a substance which stabilizes an emulsion. whereas, Surfactants reduce the surface tension of water by adsorbing at the liquid-gas interface. They also reduce the interfacial tension between oil and water by adsorbing at the liquid-liquid interface.
from what i understand emulsifying agents is a general term whereas surfactant is more specific…what are the kinds of emulsifying agents anyway?

Sabrina asked: For example:
What is the oxidizing agent in the following redox equation?
H(+) +I(-) +Cr2O7(-2) –> Cr(3+) +I2 +H20
I’m not sure how to figure out what the oxidizing agent is, or the reducing agent in similar equations.
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