Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_225205_3 (state__class_ VARCHAR, reason_for_change VARCHAR)
### Question:
Name the state class for  iowa admitted to the union december 28, 1846
### Answer:
SELECT state__class_ FROM table_225205_3 WHERE reason_for_change = "Iowa admitted to the Union December 28, 1846"