SOlar power is energy collected from the sun, it will last for billions of years whereas fossil fuels are limited by what we have on our planet.
H2so4+2koh gives K2so4(aq)+2H20
2H3o+ +SO4+2k+2OH gives 2k+SO4+4H20
2H3O+2OH gives 4H20
H30+OH gives 2H20
The answer to the question asked above is that in a Molecular Solid, the substance just dissolves into the solution when added to water but ionic solid does not.
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