2. One (slice) rice cake.

3. One (dish) rice cake.

4. A rice cake.

5. A piece of rice cake.

6. A rice cake.

7. A box of rice cakes.

8. A basket of rice cakes.

9. A bowl of rice cakes.

10, one rice cake (bag).

1 1, a (bag) of rice cakes.

12, a pile of rice cakes.