What are the three conversion equations that can be used to convert between the scales of temperature (Kelvin, Celsius and Farenheit?)

What is the name of this hydrocarbon?

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution