Which of the following are true statements ? (Chem question)?

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Which of the following are true statements ? (Chem question)?

a) A free radical is a molecule with one or more unpaired electrons

b) Molecules in the atmosphere can gain energy equal to hλ by absorbing a photon.

c) Chemical reactions that do not occur at normal atmospheric temperatures can take place by absorbing a photon

d) O2(g) → O + O is an example of photodissociation

2007-12-13 05:45:06 · 2 answers · asked by ginger_spic 1 in Science & Mathematics ➔ Chemistry

2 answers

a) is true? it is the definition of free radical

b) false ? Energy is h*frequency

c) Is possible but not always true depend on kinetics

d)do not know

2007-12-13 06:28:47 · answer #1 · answered by maussy 7 · 0⤊ 0⤋

this is just like another question just asked.

a) yes
b) no - its hv (h nu)
c) yes
d) yes

2007-12-13 14:29:28 · answer #2 · answered by iheart808 3 · 0⤊ 0⤋