How did the mass change when the copper coin was made to look silver? a .It stayed the same.
b. It decreased.
c . It increased.

Sugar and water are chemically combined.(a solution is chemically combined while a mixture is mixed together without bonding the molecules)

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Higher temperature = molecules move around faster. and vice versa.

Fake and a real . . . . . ..