Ice is a mixture and it can be a compound at the same time. A mixture is when you have to substance's put together fro example you can mix salt and sugar together. But a compound is when two different elements or molecules are combined. Ice cream is a mixture or cream and sugar mainly.
The atoms undergo chemical changes.
New substances may be a product of the reaction.
Lithium, sodium, potassium, rubidium, cesium, and francium
J. J. Thomson is the corect awncer
