Answer:
The correct answer is option c.
Explanation:
where,
E = energy of photon = ?
h = Planck's constant = 
=- frequency of the wave
c = speed of light = 
= wavelength of the radio wave photon
Now put all the given values in the above formula, we get the energy of the photons.
Hence, the correct answer is option c.
We classify each of the reaction as follows:
<span>A. Pb(s) + Hg2SO4 (s) ---> PbSO4(s) +2 Hg(I)
Single replacement reaction
B. NaCI(aq) + AgNO3(aq) --->AgCI(s) +NaNO3(aq)
Double replacement reaction
C. 2H20(I)--->2H2(g) + 02(g)
Decomposition reaction
Hope this answers the question. Have a nice day.</span>
The answer to this would be helium
Aluminum is in aluminum foil
Answer:
Copper - Gold are below Hydrogen and lean to the least reactive end. All of the elements above Hydrogen in the reactivity series will displace Hydrogen atoms from an acid during a reaction.
