B. Developing theories using many lines of evidence
<span>he specific heat capacity of liquid water is 4.186 J/gm K.</span>
Answer:
the wavelength of radiation emitted is 
Explanation:
The energy of the Bohr's hydrogen atom can be expressed with the formula:

For n = 7:


For n = 4


The electron goes from the n = 7 to the n = 4, then :


Wavelength of the radiation emitted:

where;
hc = 1242 eV.nm


I don't know your options but maybe this bit of information will help, the boiling point of water is 212<span>°</span>F so at that temperature it will likely just start evaporating
The answer to that question would be Activation energy. If would like me to elaborate just let me know. :)