They will dissolve at basically the same time. It depends on the size of crystal of the sugar and salt.
It is a physical process.
Salt will melt first.
salt
salt
The water that will freeze first is none because because sugar and salt are the same.They only have different taste.
Dissolution is physical change.
salt suger = sugar salt suger = sugar salt suger = sugar salt suger = sugar
The process of dissolving salt lowers the freezing point of the solution. So putting salt on the ice starts this process of dissovling, which creates a solution which will not freeze until a much lower temperature. Plain ice -- no solution.
Remove the sugar
Sugar. You can caramelize sugar on a home stove quite easily. Salt's melting temperature, by contrast, is orders of magnitude higher
No, sugar doesn't contain salt.
Salt and sugar doesn't react.