Sugar is a (chemical) compound, but not a change at all.
It is a chemical change because sugar is decomposed.
Sugar changing to alcohol is a chemical change.
Yes, as well as a chemical change. It clearly changes (white, granulated sugar and liquid to burned brown sugar and liquid to a sticky [and delicious] substance). It changes from a solution to a syrup!
yes, it is a chemical change.
Sugar is a chemical compound or rather a group of compounds containing carbon oxygen and hydrogen, not a chemical change.
Powdering sugar does not change it chemically.
Yes, the burning of sugar is a chemical change, as it produces substances with different chemical properties than the reactants.
Unless you overdo it and carmelize it, it is a physical change. A typical process is to dissolve a large amount of sugar into hot water (physical change - the sugar is still sugar and the water is still water; they do not react. If the sugar-water is not syrupy enough, you can boil off some of the water (still a physical change). If you overdo it though, you will begin to caramelize the sugar. If the sugar is sucrose, it breaks down into fructose and sucrose along with a host of other side reactions that condense, isomerize, dehydrate, fragment, polymerize, and otherwise chemically change the original sugar. Caramelization is definitely a chemical change, but it is not necessary to make syrup.
Chemical.
chemical change
Chemical change.
Yes, this is a chemical change.