Copper nitrate
Copper nitrate is the oxidizing agent as it gets reduced from +2 to 0 oxidization State and oxidize Fe from 0 to +2 state.
Answer:

Explanation:
Data provided as per the question below:-
Wavelength = 430.nm
The computation of the frequency of the light is shown below:-
Frequency = Velocity of light ÷ Wavelength
The Velocity of light = 
Wavelength = 430 nm =
m
Frequency = 


= 
Therefore for determining the frequency we simply applied the above formula.
Answer:
Taste bufs
Explanation:
May be teenager or adult is the most probable answer because teenager and adult are fully developed species of human so they can have most sensitive taste bud
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Charge # = protons - electons
Mass # = protons + neutrons
so that would be
3-3= charge#
3+4= mass#