You need to know the energy frequency relationship for photons, which is thanks to Max Planck:
Photon Energy = Planck constant x Frequency
Rarranged:
Photon Energy / Planck Constant = Frequency
Planck Constant = 6.63x10^-34
2.93x10^-25 / 6.63x10^-34 = Frequency
Answer:
hydrogen atom and oxygen atom
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The common household that when mixed with bleach can produce dangerous chemical fumes is ammonia.When ammonia is mixed with bleach, the chemical reaction between the two produces chloranamine which is a toxic gas when ingested. answer then to this problem is A