Answer: The frequency of this light is
.
Explanation:-
To calculate the frequency of light, we use the equation:

where,
= wavelength of the light =

c = speed of light = 
= frequency of light = ?



The frequency of this light is
.
Answer: The reactants
Explanation: These are the substances that go into a chemical reaction and start it.
Answer:
Two electrons each!
Explanation:
The question pretty much requires us to find the oxidation number of Zinc in the compound.
Zn3P2
Following oxidation number rules;
O.N of Zn3P2 = 0
.Since phosphorus has valence of 5, it needs three more electrons to achieve its octet state. Hence;
Oxidation number of P = -3
Let oxidation number of Zn = x
We have;
3x + 2 (-3) = 0
3x + (-6) = 0
3x = 6
x = 6/3 = 2
This means each zn electrons lost 2 electrons.
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