No.
Melting a sugar cube is a physical change because the substance remains sugar, just in a different form (solid to liquid). The chemical composition of sugar does not change during the melting process.
Yes.Yes.Yes.Yes.
When a sugar cube dissolves in water, it undergoes physical weathering by breaking down into smaller sugar particles through the process of dissolution. Chemical weathering is also involved as the water molecules interact with and separate the sugar molecules, causing them to disintegrate.
Burning or oxidization is always a chemical change. The process takes in Oxygen and Sugar and outputs different compounds including water, carbon dioxide, carbon monoxide, and other carbon residue.
The "cube" disappears but the "sugar" doesn't. When placed in water the sugar dissolves. Essentially the sugar molecules break off from the solid and hide among the water molecules. If the water were to be removed by evaporation the sugar would precipitate out. if done carefully large sugar crystals will grow in the evaporating solution. The sugar cube will not reform as this is an artificial construct.
Dissolution is a physical process.
The dissolving of a sugar cube in water is a physical change, not a chemical change. This is because the sugar molecules are still present in the water; they have not undergone a chemical reaction to form new substances.
Water is the chemical that dissolves a sugar cube. The water molecules surround the sugar molecules and break the bonds holding them together, causing the sugar cube to dissolve.
Sugar dissolves faster.
Because melting sugar turns color to form caramel. i.e. it has changed and specifically it has undergone a CHEMICAL CHANGE (Or chemical reaction). When melting ice, no chemical reaction occurs, and so it is just a PHYSICAL CHANGE.
Melting a sugar cube is a physical change because the substance remains sugar, just in a different form (solid to liquid). The chemical composition of sugar does not change during the melting process.
This is a physical change the chemical composition of the sugar does not change
Physical.
Sugar is very soluble in water.
Yes.Yes.Yes.Yes.
When a sugar cube dissolves in water, it undergoes physical weathering by breaking down into smaller sugar particles through the process of dissolution. Chemical weathering is also involved as the water molecules interact with and separate the sugar molecules, causing them to disintegrate.
Physical.